Gwazda Men's Clothing's revenues and cost data for 2017 are as follows: (Click the icon to view the data.) Mr. Gwazda, the owner of the store, is unhappy with the operating results. An analysis of other operating costs reveals that it includes $45,000 variable costs, which vary with sales volume, and $10,000 (fixed) costs. Read the requirements. Requirement 1. Compute the contribution margin of Gwazda Men's Clothing. Determine the formula to calculate the contribution margin, then enter the amounts in the formula to compute the contribution margin of Gwazda Men's Clothing. Contribution margin Requirement 2. Compute the contribution margin percentage. Determine the formula to calculate the contribution margin percentage, then enter the amounts in the formula to compute the contribution margin percentage. (Enter the result as a whole percentage, XX%.) Contribution margin percentage - = % Requirement 3. Mr. Gwazda estimates that he can increase units sold, and hence revenues by 15% by incurring additional advertising costs of $14,000. Calculate the impact of the additional advertising costs on operating income. Determine the formula to solve for the amount then complete the formula. Change in operating income Choose from any list or enter any number in the input fields and then continue to the next question. X Data Table - Revenues 450,000 225,000 Cost of goods sold (all variable costs) Gross margin Operating costs: 225,000 Salaries fixed 130,000 58,500 Sales commissions (13% of sales) Depreciation on equipment and fixtures Store rent ($3,000 per month) 12,000 36,000 55,000 Other operating costs 291,500 $ (66,500) Operating income (loss) Print Done Requirement 3. Mr. Gwazda estimates that he can increase units sold, and hence revenues by 15% by incurring additional advertising costs of $14,000. Calculate the impact of the additional advertising costs on operating income. Determine the formula to solve for the amount then complete the formula. Change in operating income = Requirement 4. What other actions can Mr. Gwazda take to improve operating income? To improve operating income, Mr. Gwazda must find ways to hoose from any list or enter any number in the input fields and then continue to the next