Western Travel uses the contribution margin income statement internally. Western's first quarter results are as follows: (Click the icon to view the income statement.) Western's relevant range is sales of between $140,000 and $670,000. Read the requirements. Requirement 1. Prepare contribution margin income statements at sales levels of $170,000 and $480,000. (Hint: Use the contribution margin ratio.) Begin by preparing the contribution margin income statement at the $170,000 level. (Round the variable expense rate to the nearest whole percent. Enter losses with a minus sign or parentheses.) Western Travel Contribution Margin Income Statement Three Months Ended March 31 Sales revenue Less: Variable expenses Contribution margin Less: Fixed expenses Operating income (loss) 3 1 2 A B Western Travel Contribution Margin Income Statement Three Months Ended March 31 4 Sales revenue $ 69 475,000 5 Less: Variable expenses 142,500 $ 332,500 6 Contribution margin 7 Less: Fixed expenses 8 Operating income EA $ 165,200 167,300 1. Prepare contribution margin income statements at sales levels of $170,000 and $480,000. (Hint: Use the contribution margin ratio.) 2. Compute breakeven sales in dollars