vair Steel Parts produces parts for the automobile industry. The company has monthly fixed expenses of $460000 and a contribution margin of 90% of revenues. Requirements 1. Compute Steel Parts' monthly break-even sales in dollars. Use the contribution margin ratio shortcut approach. 2. Use the contribution margin ratio to project operating income (or loss) if revenues are $680000 and if they are $1450000 . 3. Do the results in Requirement 2 make sense given the break-even sales you computed in Requirement 1? Explain. Question content area bottom Part 1 Requirement 1. Compute Steel Parts' monthly break-even sales in dollars. Use the contribution margin ratio shortcut approach. Select the labels to complete the formula, and then enter the amounts to calculate Steel Parts' monthly break-even sales in dollars. (Enter ratios as decimals. Round your answer up to the nearest whole dollar.) ( + ) / = Break-even sales in dollars ( + ) /