- X Requirements 1. Calculate the weighted-average contribution margin. 2. Determine Unique's monthly breakeven point in dozens of plain donuts and custard-filled donuts. Prove your answer by preparing a summary contribution margin income statement at the breakeven level of sales. Show only two categories of costs: variable and fixed. 3. Compute Unique's margin of safety in dollars for August 2018 4. Compute the degree of operating leverage for Unique Donuts. Estimate the operating income if total sales increase by 20%. (Round the degree of operating leverage to four decimal places and the final answer to the nearest dollar. Assume the sales mix remains unchanged.) new 5. Prove your answer to Requirement 4 by preparing a contribution margin income statement with a 20 % increase in total sales. (The sales mix remains unchanged.) P21-58A (similar to) EQuestion Help The contribution marqin income statement of Unique Donuts for August 2018 follows: Unique sells tvwo dozen plain donuts for every dozen custard-filled donuts. A dozen plain donuts sells for $4.00 with total variable cost of $1.60 per dozen. A dozen custard-filled donuts sells for $7.00, with total variable cost ot (Click the icon to view the contribution margin income statement) Read the requirements Requirement 1. Calculate the weighted-average contribution margin. (Round all currency amounts to the nearest cent.) Plain Filled Total Contribution margin Weighted-average contribution margin per unit Choose from any list or enter any number in the input fields and then click Check Answer. -X Data Table Month Ended August 31, 2018 $ 125,000 Net Sales Revenue Variable Costs: Cost of Goods Sold 32,700 Selling Costs 17,200 50,000 100 Administrative Costs Contribution Margin 75,000 Fixed Costs: 20,250 Selling Costs 6,750 27,000 Administrative Costs $ 48,000 Operating Income Print Done