Extel Netivitys Caloulating the wace commen squhr. Mher-tes cest of debt: Cost of preferred thact: Cost of retaned earnisgs: Cost of new temmen necki b. Now calculate the cost of common equity from retained earnings, using the CAPM method. % calculating WAOC.) wacc 1 : w wacc 2 \% Extel Netivitys Caloulating the wace commen squhr. Mher-tes cest of debt: Cost of preferred thact: Cost of retaned earnisgs: Cost of new temmen necki b. Now calculate the cost of common equity from retained earnings, using the CAPM method. % calculating WAOC.) wacc 1 : w wacc 2 \%