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Commonwealth Construction $($CC$)$ needs $$3$ million of assets to get started, and it expects to have a basic earning power ratio of $30\%.$ CC will own no securities$,$ all of its income will be operating income. If it so chooses, CC can finance up to $25\%$ of its assets with debt, which will have an $8\%$ interest rate. If it chooses to use debt, the firm will finance using only debt and common equity, so no preferred stock will be used. Assuming a $25\%$ tax rate on taxable income, what is the difference between CC$\text{'}$s expected ROE if it finances these assets with $25\%$ debt versus its expected ROE if it finances these assets entirely with common stock? Round your answer to two decimal places.