iFormula: TTM_OCF / (TTM_CapEx + TTM_DebtRepay + TTM_Dividends) (Debt repayment approximated as GREATEST(0, -net_debt_issuance)). Measures whether the company's "core cash generation" (operating cash flow) is sufficient to cover "essential expenses": 1. Investments to maintain operations and growth (CapEx); 2. Debt repayments coming due (DebtRepay); 3. Dividends to shareholders (Dividends). If the ratio < 1, the company is "living beyond its means" and must rely on external financing (e.g., new debt, equity issuance), indicating high financial pressure.