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Core metrics layer

Ambient Core defines 51 shared templates in catalog/shared/metrics.yaml. At generate time they expand into every industry pack as {industry}.core.{slug} keys (918 expanded keys across 18 packs). Each industry page lists its core rows alongside pack-specific metrics.

Accounts Payable Days​

  • Type: Financial
  • Unit: Days
  • Description: Payables expressed as days of COGS; 365-day convention (Ambient corporate ratio pack). Distinct from catalog DPO.
  • Inputs: cogs, accounts_payable
  • Methodology: Accounts Payable Days
  • Calculation: accounts_payable * 365 / max(cogs, 0)
  • Catalog key pattern: {industry}.core.accounts_payable_days

Accounts Payable Turnover​

  • Type: Financial
  • Unit: x
  • Description: COGS divided by accounts payable
  • Inputs: cogs, accounts_payable
  • Methodology: Accounts Payable Turnover
  • Calculation: cogs / max(accounts_payable, 0)
  • Catalog key pattern: {industry}.core.accounts_payable_turnover

Accounts Receivable Days​

  • Type: Financial
  • Unit: Days
  • Description: Receivable balance in days of revenue; 365-day convention (Ambient corporate ratio pack). Distinct from catalog DSO.
  • Inputs: revenue, accounts_receivable
  • Methodology: Accounts Receivable Days
  • Calculation: accounts_receivable * 365 / max(revenue, 0)
  • Catalog key pattern: {industry}.core.accounts_receivable_days

Accounts Receivable Turnover​

  • Type: Financial
  • Unit: x
  • Description: Revenue divided by accounts receivable Not parameterized DSO.
  • Inputs: revenue, accounts_receivable
  • Methodology: Accounts Receivable Turnover
  • Calculation: revenue / max(accounts_receivable, 0)
  • Catalog key pattern: {industry}.core.accounts_receivable_turnover

Monthly Burn Rate​

  • Type: Financial
  • Unit: Currency/month
  • Description: Net cash consumed per month (negative net operating cash flow).
  • Inputs: cash_out, cash_in
  • Methodology: Net Burn = Cash Out − Cash In (per month)
  • Calculation: cash_out - cash_in
  • Catalog key pattern: {industry}.core.burn_rate

Cash Days​

  • Type: Financial
  • Unit: Days
  • Description: Cash balance expressed as days of revenue at a 365-day year (Ambient corporate ratio pack).
  • Inputs: revenue, cash
  • Methodology: Cash Days
  • Calculation: cash * 365 / max(revenue, 0)
  • Catalog key pattern: {industry}.core.cash_days

Cash Turnover​

  • Type: Financial
  • Unit: x
  • Description: Revenue divided by cash
  • Inputs: revenue, cash
  • Methodology: Cash Turnover
  • Calculation: revenue / max(cash, 0)
  • Catalog key pattern: {industry}.core.cash_turnover

Cash Conversion Cycle​

  • Type: Financial
  • Unit: Days
  • Description: Days to convert investments in inventory and receivables back into cash.
  • Inputs: days_inventory_outstanding
  • Methodology: CCC = DSO + Days Inventory Outstanding − DPO
  • Calculation: dso + days_inventory_outstanding - dpo
  • Catalog key pattern: {industry}.core.ccc

Current Ratio​

  • Type: Financial
  • Unit: Ratio
  • Description: Short-term liquidity: ability to cover current liabilities with current assets.
  • Inputs: current_assets, current_liabilities
  • Methodology: Current Ratio = Current Assets / Current Liabilities
  • Calculation: current_assets / current_liabilities
  • Catalog key pattern: {industry}.core.current_ratio

Debt to EBITDA​

  • Type: Financial
  • Unit: x
  • Description: Gross interest-bearing debt divided by EBITDA
  • Inputs: interest_bearing_liabilities
  • Methodology: Debt to EBITDA
  • Calculation: interest_bearing_liabilities / max(ebitda_derived, 0)
  • Catalog key pattern: {industry}.core.debt_to_ebitda

Debt to Equity​

  • Type: Financial
  • Unit: x
  • Description: Interest-bearing liabilities divided by equity
  • Inputs: interest_bearing_liabilities, total_shareholders_equity
  • Methodology: Debt to Equity
  • Calculation: interest_bearing_liabilities / max(total_shareholders_equity, 0)
  • Catalog key pattern: {industry}.core.debt_to_equity

Debt to Tangible Net Worth​

  • Type: Financial
  • Unit: x
  • Description: Interest-bearing debt divided by tangible net worth (Ambient corporate ratio pack).
  • Inputs: interest_bearing_liabilities
  • Methodology: Debt to Tangible Net Worth
  • Calculation: interest_bearing_liabilities / max(tangible_net_worth, 0)
  • Catalog key pattern: {industry}.core.debt_to_tangible_net_worth

EBITDA (derived)​

  • Type: Financial
  • Unit: Currency (e.g., USD)
  • Description: EBIT plus depreciation and amortization
  • Inputs: operating_income, depreciation, amortization
  • Methodology: EBITDA (derived)
  • Calculation: operating_income + depreciation + amortization
  • Catalog key pattern: {industry}.core.derived_ebitda

Effective Tax Rate​

  • Type: Financial
  • Unit: %
  • Description: Tax expense divided by earnings before tax
  • Inputs: tax_expense, earnings_before_tax
  • Methodology: Effective Tax Rate = Tax Expense / Earnings Before Tax
  • Calculation: tax_expense / max(earnings_before_tax, 0)
  • Catalog key pattern: {industry}.core.derived_effective_tax_rate

Gross Profit (derived)​

  • Type: Financial
  • Unit: Currency (e.g., USD)
  • Description: Revenue minus COGS; building block for margins
  • Inputs: revenue, cogs
  • Methodology: Gross Profit (derived)
  • Calculation: revenue - cogs
  • Catalog key pattern: {industry}.core.derived_gross_profit

Invested Capital​

  • Type: Financial
  • Unit: Currency (e.g., USD)
  • Description: Net debt plus total shareholders' equity
  • Inputs: total_shareholders_equity
  • Methodology: Invested Capital
  • Calculation: net_debt + total_shareholders_equity
  • Catalog key pattern: {industry}.core.derived_invested_capital

Net Debt​

  • Type: Financial
  • Unit: Currency (e.g., USD)
  • Description: Interest-bearing liabilities minus cash
  • Inputs: interest_bearing_liabilities, cash
  • Methodology: Net Debt
  • Calculation: interest_bearing_liabilities - cash
  • Catalog key pattern: {industry}.core.derived_net_debt

Net Operating Profit After Tax (NOPAT)​

  • Type: Financial
  • Unit: Currency (e.g., USD)
  • Description: EBIT adjusted for cash taxes using the effective tax rate (Ambient corporate ratio pack).
  • Inputs: operating_income
  • Methodology: Net Operating Profit After Tax (NOPAT)
  • Calculation: operating_income * (1 - effective_tax_rate)
  • Catalog key pattern: {industry}.core.derived_nopat

Quick Assets (strict)​

  • Type: Financial
  • Unit: Currency (e.g., USD)
  • Description: Cash, marketable securities, and accounts receivable (Ambient corporate ratio pack).
  • Inputs: cash, marketable_securities, accounts_receivable
  • Methodology: Quick Assets (strict)
  • Calculation: cash + marketable_securities + accounts_receivable
  • Catalog key pattern: {industry}.core.derived_quick_assets

Tangible Net Worth​

  • Type: Financial
  • Unit: Currency (e.g., USD)
  • Description: Shareholders' equity minus intangible assets
  • Inputs: total_shareholders_equity, intangible_assets
  • Methodology: Tangible Net Worth
  • Calculation: total_shareholders_equity - intangible_assets
  • Catalog key pattern: {industry}.core.derived_tangible_net_worth

Days Payable Outstanding (DPO)​

  • Type: Financial
  • Unit: Days
  • Description: Average number of days the business takes to pay its suppliers.
  • Inputs: accounts_payable, cogs, days
  • Methodology: DPO = (Accounts Payable / COGS) × Number of Days
  • Calculation: accounts_payable / cogs * days
  • Catalog key pattern: {industry}.core.dpo

Days Sales Outstanding (DSO)​

  • Type: Financial
  • Unit: Days
  • Description: Average number of days to collect cash after a sale.
  • Inputs: accounts_receivable, total_credit_sales, days
  • Methodology: DSO = (Accounts Receivable / Total Credit Sales) × Number of Days
  • Calculation: accounts_receivable / total_credit_sales * days
  • Catalog key pattern: {industry}.core.dso

EBIT to Interest​

  • Type: Financial
  • Unit: x
  • Description: EBIT divided by gross interest expense
  • Inputs: operating_income, interest_expense
  • Methodology: EBIT to Interest
  • Calculation: operating_income / max(interest_expense, 0)
  • Catalog key pattern: {industry}.core.ebit_to_interest

EBITDA Less Capex to Interest​

  • Type: Financial
  • Unit: x
  • Description: Capex-adjusted EBITDA coverage
  • Inputs: capital_expenditures, interest_expense
  • Methodology: EBITDA Less Capex to Interest
  • Calculation: (ebitda_derived - capital_expenditures) / max(interest_expense, 0)
  • Catalog key pattern: {industry}.core.ebitda_less_capex_to_interest

EBITDA Margin​

  • Type: Financial
  • Unit: %
  • Description: Core operating cash profitability before interest, tax, depreciation and amortization.
  • Inputs: ebitda, revenue
  • Methodology: EBITDA Margin = (EBITDA / Revenue) × 100
  • Calculation: ebitda / revenue * 100
  • Catalog key pattern: {industry}.core.ebitda_margin

EBITDA to Interest (Interest Coverage)​

  • Type: Financial
  • Unit: x
  • Description: EBITDA divided by gross interest expense
  • Inputs: interest_expense
  • Methodology: EBITDA to Interest (Interest Coverage)
  • Calculation: ebitda_derived / max(interest_expense, 0)
  • Catalog key pattern: {industry}.core.ebitda_to_interest

Effective Interest Rate​

  • Type: Financial
  • Unit: %
  • Description: Gross interest expense divided by interest-bearing liabilities (Ambient corporate ratio pack).
  • Inputs: interest_expense, interest_bearing_liabilities
  • Methodology: Effective Interest Rate
  • Calculation: interest_expense / max(interest_bearing_liabilities, 0)
  • Catalog key pattern: {industry}.core.effective_interest_rate

Fixed Charge Coverage​

  • Type: Financial
  • Unit: x
  • Description: Capex-adjusted EBITDA over interest plus current debt maturities (Ambient corporate ratio pack).
  • Inputs: capital_expenditures, interest_expense, current_portion_long_term_debt
  • Methodology: Fixed Charge Coverage
  • Calculation: (ebitda_derived - capital_expenditures) / max(interest_expense + current_portion_long_term_debt, 0)
  • Catalog key pattern: {industry}.core.fixed_charge_coverage

Gross Profit Margin​

  • Type: Financial
  • Unit: %
  • Description: Share of revenue retained after the direct cost of goods sold.
  • Inputs: revenue, cogs
  • Methodology: Gross Margin = ((Revenue − COGS) / Revenue) × 100
  • Calculation: (revenue - cogs) / revenue * 100
  • Catalog key pattern: {industry}.core.gross_margin

Headcount (FTE)​

  • Type: Operational
  • Unit: Count
  • Description: Period-end count of active full-time-equivalent employees. A directly measured input, not a derived ratio.
  • Methodology: Period-end count of active employees expressed as full-time equivalents (directly measured, not calculated).
  • Calculation: No machine-readable calc — directly reported or qualitative.
  • Catalog key pattern: {industry}.core.headcount

Interest Burden​

  • Type: Financial
  • Unit: %
  • Description: EBT relative to EBIT; DuPont lever
  • Inputs: earnings_before_tax, operating_income
  • Methodology: Interest Burden
  • Calculation: earnings_before_tax / max(operating_income, 0)
  • Catalog key pattern: {industry}.core.interest_burden

Inventory Days​

  • Type: Financial
  • Unit: Days
  • Description: Inventory held in days of COGS; 365-day convention (Ambient corporate ratio pack).
  • Inputs: cogs, inventory
  • Methodology: Inventory Days
  • Calculation: inventory * 365 / max(cogs, 0)
  • Catalog key pattern: {industry}.core.inventory_days

Inventory Turnover (ending balance)​

  • Type: Financial
  • Unit: x
  • Description: COGS divided by ending inventory Distinct from average-inventory variants.
  • Inputs: cogs, inventory
  • Methodology: Inventory Turnover (ending balance)
  • Calculation: cogs / max(inventory, 0)
  • Catalog key pattern: {industry}.core.inventory_turnover

Net Debt to EBITDA​

  • Type: Financial
  • Unit: x
  • Description: Net debt divided by EBITDA
  • Methodology: Net Debt to EBITDA
  • Calculation: net_debt / max(ebitda_derived, 0)
  • Catalog key pattern: {industry}.core.net_debt_to_ebitda

Net Profit Margin​

  • Type: Financial
  • Unit: %
  • Description: Bottom-line profitability after all costs, interest and tax.
  • Inputs: net_income, revenue
  • Methodology: Net Profit Margin = (Net Income / Revenue) × 100
  • Calculation: net_income / revenue * 100
  • Catalog key pattern: {industry}.core.net_margin

Net Profit Margin (decimal quotient)​

  • Type: Financial
  • Unit: %
  • Description: Net income divided by revenue as a decimal quotient. Alias of net_margin at percent scale; see docs/ratios/corporate-ratios.md.
  • Inputs: net_income, revenue
  • Methodology: Net Profit Margin = Net Income / Revenue
  • Calculation: net_income / max(revenue, 0)
  • Catalog key pattern: {industry}.core.net_profit_margin

Operating Cash Flow​

  • Type: Financial
  • Unit: Currency (e.g., USD)
  • Description: Cash generated by core operations during the period.
  • Inputs: net_income, non_cash_charges, increase_in_working_capital
  • Methodology: Operating Cash Flow = Net Income + Non-Cash Charges − Increase in Working Capital
  • Calculation: net_income + non_cash_charges - increase_in_working_capital
  • Catalog key pattern: {industry}.core.operating_cash_flow

Operating Margin (EBIT)​

  • Type: Financial
  • Unit: %
  • Description: Operating profitability after operating expenses (EBIT margin).
  • Inputs: operating_income, revenue
  • Methodology: Operating Margin = (Operating Income / Revenue) × 100
  • Calculation: operating_income / revenue * 100
  • Catalog key pattern: {industry}.core.operating_margin

Operating Profit Margin (EBIT)​

  • Type: Financial
  • Unit: %
  • Description: EBIT divided by revenue as a decimal quotient. Alias of operating_margin at percent scale; see docs/ratios/corporate-ratios.md. Alias of operating_margin at percent scale.
  • Inputs: operating_income, revenue
  • Methodology: Operating Profit Margin = EBIT / Revenue
  • Calculation: operating_income / max(revenue, 0)
  • Catalog key pattern: {industry}.core.operating_profit_margin

PP&E Turnover​

  • Type: Financial
  • Unit: x
  • Description: Revenue divided by net PP&E
  • Inputs: revenue, ppe_net
  • Methodology: PP&E Turnover
  • Calculation: revenue / max(ppe_net, 0)
  • Catalog key pattern: {industry}.core.ppe_turnover

Quick Ratio (Acid Test)​

  • Type: Financial
  • Unit: Ratio
  • Description: Acid-test liquidity excluding inventory — most conservative short-term solvency view. Default formula: current assets minus inventory. See quick_ratio_quick_assets for the alternate convention (cash + marketable securities + receivables).
  • Inputs: current_assets, inventory, current_liabilities
  • Methodology: Quick Ratio = (Current Assets − Inventory) / Current Liabilities
  • Calculation: (current_assets - inventory) / current_liabilities
  • Catalog key pattern: {industry}.core.quick_ratio

Quick Ratio (Quick Assets)​

  • Type: Financial
  • Unit: x
  • Description: Strict quick assets over current liabilities Formula-box quick_ratio remains default.
  • Inputs: current_liabilities
  • Methodology: Quick Ratio = (Cash + Marketable Securities + A/R) / Current Liabilities
  • Calculation: quick_assets / max(current_liabilities, 0)
  • Catalog key pattern: {industry}.core.quick_ratio_quick_assets

Return on Assets (ROA)​

  • Type: Financial
  • Unit: %
  • Description: Net income divided by total assets
  • Inputs: net_income, total_assets
  • Methodology: ROA = Net Income / Total Assets
  • Calculation: net_income / max(total_assets, 0)
  • Catalog key pattern: {industry}.core.return_on_assets

Return on Equity (ROE)​

  • Type: Financial
  • Unit: %
  • Description: Net income divided by shareholders' equity
  • Inputs: net_income, total_shareholders_equity
  • Methodology: ROE = Net Income / Total Shareholders' Equity
  • Calculation: net_income / max(total_shareholders_equity, 0)
  • Catalog key pattern: {industry}.core.return_on_equity

Return on Invested Capital (ROIC)​

  • Type: Financial
  • Unit: %
  • Description: NOPAT divided by invested capital
  • Methodology: ROIC = NOPAT / (Net Debt + Equity)
  • Calculation: nopat / max(invested_capital, 0)
  • Catalog key pattern: {industry}.core.return_on_invested_capital

Revenue Growth Rate​

  • Type: Financial
  • Unit: %
  • Description: Period-over-period revenue growth rate.
  • Inputs: revenue, revenue_prior
  • Methodology: Revenue Growth = ((Current Period Revenue − Prior Period Revenue) / Prior Period Revenue) × 100
  • Calculation: (revenue - revenue_prior) / revenue_prior * 100
  • Catalog key pattern: {industry}.core.revenue_growth

Cash Runway​

  • Type: Financial
  • Unit: Months
  • Description: Number of months of cash remaining at the current net burn rate.
  • Inputs: current_cash_balance
  • Methodology: Runway (months) = Current Cash Balance / Monthly Net Burn
  • Calculation: current_cash_balance / burn_rate
  • Catalog key pattern: {industry}.core.runway

Tax Burden​

  • Type: Financial
  • Unit: %
  • Description: Net income relative to EBT; DuPont lever
  • Inputs: net_income, earnings_before_tax
  • Methodology: Tax Burden
  • Calculation: net_income / max(earnings_before_tax, 0)
  • Catalog key pattern: {industry}.core.tax_burden

Total Asset Turnover​

  • Type: Financial
  • Unit: x
  • Description: Revenue divided by total assets
  • Inputs: revenue, total_assets
  • Methodology: Total Asset Turnover
  • Calculation: revenue / max(total_assets, 0)
  • Catalog key pattern: {industry}.core.total_asset_turnover

Total Assets to Equity (Equity Multiplier)​

  • Type: Financial
  • Unit: x
  • Description: Financial leverage lever in DuPont
  • Inputs: total_assets, total_shareholders_equity
  • Methodology: Total Assets to Equity (Equity Multiplier)
  • Calculation: total_assets / max(total_shareholders_equity, 0)
  • Catalog key pattern: {industry}.core.total_assets_to_equity

Working Capital​

  • Type: Financial
  • Unit: Currency (e.g., USD)
  • Description: Operating liquidity available to fund day-to-day operations.
  • Inputs: current_assets, current_liabilities
  • Methodology: Working Capital = Current Assets − Current Liabilities
  • Calculation: current_assets - current_liabilities
  • Catalog key pattern: {industry}.core.working_capital

Generated from ambient-core ref cc3d169 (digest a0e8f2dc8aa708fd). Regenerate: npm run sync:catalog-wiki.