I need help with (C) and (D). This is Break-Even Analysis and Cost-Profit Analysis mathematics.

Projected financial results for the university's cafeteria for next year are shown. Answer each of the following independent questions. (a) How much is the contribution margin and the contribution rate? (b) How much does the business need to sell to break even? (c) If the business was to spend $22,000 to upgrade their processes, how much does the business need to sell to break even? (d) If 9% more meals were sold, what would be the resulting net income? (a) The contribution margin is $ 735,280 . (Type an integer or a decimal.) The contribution rate is 77.725159 %. (Round to six decimal places as needed.) (b) To break even, the business needs sales to be $ 725,633.77 (Round up to the nearest cent as needed.) (c) If the business was to spend $22,000 to upgrade their processes, it would need sales to be to break even. (Round up to the nearest cent as needed.) Enter your answer in the answer box and then click Check Answer. Sales Fixed cost Total variable cost Total cost Net income $946,000 $564,000 210,720 774,720 $171,280