I just need the incorrect one solved but the others are the numbers used

Exercise 3.26 Flounder Company manufactures a single product. Flounder normally produces and sells 530 units per month at $123 each. The company's income tax rate is 27%. Estimated monthly costs are as follows: Manufacturing Nonmanufactuing Variable $11,130 $5,300 Fixed 12,720 9,010 Your answer is correct. What is the contribution margin per unit? Contribution margin per unit 92 SHOW SOLUTION SHOW ANSWER LINK TO TEXT Your answer is correct. What is the contribution margin ratio? (Round to 2 decimal places, e.g. 17.54%.) Contribution margin ratio 74.80% SHOW SOLUTION SHOW ANSWER LINK TO TEXT Your answer is correct. How many units must Flounder sell to break even? (Round answer to nearest whole units, e.g. 125.) Breakeven point 236 units SHOW SOLUTION SHOW ANSWER LINK TO TEXT x Your answer is incorrect. Try again. If the company desires an after-tax profit of 20% on the selling price, what is the equivalent pretax return on sales? (Round intermediate calculations to 4 decimal places, e.g. 15.1679 and final answer to o decimal places, e.g. 5,125.) Pretax return 12554