Hoffer Edifier company sells a one design speaker. The company's sales and expenses for June 2022 follows: Total Per Unit Sales $249,600 $32.00 Less: Variable expenses $124,800 $16.00 Contribution margin $124,800 $16.00 Less Fixed Expenses $70,700 Net operating Profit $54,100 Do not enter dollar signs or commas in the input boxes. a) What is the monthly break-even point in units sold? Round your answer up to the nearest whole number. Break-even point in units sold: units b) How many units