Calculator Which of the following formulas computes residual income? Oa. Residual Income After-tax Operating Income/ (Actual Percentage Cost of Capital x Total Capital Employed) Ob. Residual Income (Minimum Rate of Return x Average Operating Assets)/ Operating Income Oc. Residual Income Operating Income - (Minimum Rate of Return x Od. Residual Income Operating Income / Average Operating Assets Oe. Residual Income Operating Income- Return on Investment Average Operating Assets)