Show Attempt History Current Attempt in Progress In September. Sheridan Industries sold 810 units of product. The average sales price was $45. During the month, foed costs were $7,020 and variable costs were 60% of sales (a) Your answer is correct Determine the contribution margin in dollars, per unit and as a ratio (Round Contribution margin to decimal places.eu 5.275. Other all answers to 2 decimal places. e. 52.75.) Contribution marin in dollars) $ 16550 Unit contribution margin 5 98 Contribution margin ratio eTextbook and Media Attempts: 1 of 1 used 1b) Using the contribution margin technique.compute break even sales dollars and sales units Break even sales in dollars) $ Break-even sales in its units e Textbook and Media Attempts of 1 used Sul A