There are two firms: Firm U and Firm L$.$ Both firms have $$200$M total assets and $$40$M EBIT $($earnings before interest and taxes$).$ Firm U is an unleveraged firm without debt. Firm L is a leveraged firm with $60\%$ of debt and $40\%$ of common equity. The pre$-$tax cost of debt for Firm L is $10\%.$ Both firms have $40\%$ corporate tax rate. Calculate the return on equity $($ROE$)$ for the unleveraged firm U and the leveraged firm L$.$ What$$s the difference between the total dollars paid to the investors $($both common shareholders and debtholders$)$ in the leveraged firm L and the total dollars paid to the investors in the unleveraged firm U$?$