Marc, a single taxpayer, earns $64,400 in taxable income and $5,440 in interest from an investment in city of Birmingham Bonds. Using the U.S. tax rate schedule for year 2020, what is his effective tax rate? (Round your final answer to two decimal places.) (Use Tax rate schedule.)

Marc, a single taxpayer, earns $62,200 in taxable income and $5,220 in interest from an investment in city of Birmingham bonds. Using the U.S. tax rate schedule for 2020, what is his average tax rate? (Round your final answer to two decimal places.) (Use tax rate schedule.)