# Overall Return Ratios — Owner's Viewpoint
These ratios assess the overall return earned by various capital contributors and by the market.
## 1. Return on Investment (ROI) / Return on Capital Employed (ROCE)
$$\text{Pre-tax ROCE} = \frac{\text{EBIT}}{\text{Capital Employed}}$$
$$\text{Post-tax ROCE} = \frac{\text{EBIT}(1 - t)}{\text{Capital Employed}} = \frac{\text{EAT} + \text{Interest}}{\text{Capital Employed}}$$
Capital Employed = Equity + Long-term Debt = Total Assets − Current Liabilities.
## 2. Return on Net Worth (RONW)
$$\text{Pre-tax RONW} = \frac{\text{PBT}}{\text{Net Worth}}; \quad \text{Post-tax RONW} = \frac{\text{PAT}}{\text{Net Worth}}$$
Net Worth = Shareholders' Funds = Equity Capital + Reserves − Misc. Exp. − Accumulated Losses.
## 3. Return on Assets (ROA)
$$\text{Pre-tax ROA} = \frac{\text{EBIT}}{\text{Average Total Assets}}$$
$$\text{Post-tax ROA} = \frac{\text{EAT} + \text{Interest}}{\text{Average Total Assets}}$$
## 4. Earnings Per Share (EPS)
$$\text{EPS} = \frac{\text{Residual Earnings (EAT − Pref. Dividend)}}{\text{Number of Equity Shares}}$$
Number of Equity Shares = Equity Capital / Face Value per Share.
## 5. Dividend Per Share (DPS)
$$\text{DPS} = \frac{\text{Total Equity Dividend}}{\text{Number of Equity Shares}}$$
## 6. Price-Earnings (P/E) Ratio
$$\text{P/E} = \frac{\text{Market Price per Share}}{\text{EPS}}$$
Indicates how many years of current earnings investors are paying for one share. A higher P/E typically signals expected growth.
## 7. Dividend Yield
$$\text{Dividend Yield} = \frac{\text{DPS}}{\text{Market Price per Share}} \times 100$$
## 8. Book Value Per Share
$$\text{Book Value per Share} = \frac{\text{Equity Shareholders' Funds}}{\text{Number of Equity Shares}}$$
## 9. Market Value to Book Value
$$\frac{\text{Market Price per Share}}{\text{Book Value per Share}}$$
Measures market premium over accounting net worth.
## 10. Tobin's Q Ratio
$$Q = \frac{\text{Market Value of Equity + Liabilities}}{\text{Estimated Replacement Cost of Assets}} = \frac{\text{Market Value of Company}}{\text{Asset Replacement Cost}}$$
- Q > 1 → market values the firm above the replacement cost of its assets (good intangible value).
- Q < 1 → undervalued or asset-heavy with poor profitability.