The owners of Portobello Company is confused with calculations. They want you to help them calculate how much sales revenue they should have given the following information: Operating profit $84,000 Break-even point in sales $360,000 Contribution margin ratio 20% 40% Tax rate Select one: O $1,060,000 Ob $1,600,000 Oc $1,040,000 Od. $1,000,000 Oe $1,050,000 A