Song earns $347,500 taxable income as an interior designer and is taxed at an average rate of 15 percent (i.e., $52,125 of tax).

a. If Congress increases the income tax rate such that Songs average tax rate increases from 15 percent to 20 percent, how much more income tax will she pay assuming that the income effect is descriptive? (Round your intermediate calculations and final answer to 2 decimal places.)