What would be the times interest earned of a company if its total interest charges are $20,000, sales are $220,000, and its net profit margin is 6 percent? Assume a tax rate of 40 percent. What would be the times interest earned of a company if its total interest charges are $20,000, sales are $220,000, and its net profit margin is 6 percent? Assume a tax rate of 40 percent.