Consider the following data for Magnimus Corporation. Sales in units Sales revenue Direct materials Direct labour Manufacturing overhead Sales commission Other selling expenses Administrative expenses July 4,500 $ 495,000 82,800 100,350 62,330 29,250 40,970 32,800 August 5,200 $572,000 95,680 115,960 67.230 33,800 43,070 32,800 September 5,800 $638,000 106.720 129,340 71,430 37.700 44,870 32,800 Required: Write the cost equation for manufacturing overhead. Y