Calculate the total amount of interest earned by the end of two years if $20,000 is invested at 7% interest - simple interest. Calculate the total amount of interest earned by the end of two years if $20,000 is invested at 7% interest - compound interest. Karma company has the following numbers: Sales = $550,000, Variable Costs = $385,000, and Fixed Costs = $90,000. What is the break-even sales for Karma