Exercise 18-3 al-a2 (Video) The controller of Cullumber Industries has collected the following monthly expense data for use in analyzing the cost behavior of maintenance costs. Month January February March April May June Total Maintenance Costs $2,760 3,060 3,660 4,560 3,260 5,560 Total Machine Hours 330 380 530 660 530 730 (a1) Determine the variable cost components using the high-low method. (Round answer to 2 decimal places e.g. 2.25.) Variable cost per machine hour LINK TO TEXT LINK TO TEXT VIDEO: STHILAR EXERCISE (a2) Determine the fixed cost components using the high-low method. Total fixed costs LINK TO TEXT LINK TO TEXT VIDEO: SIMILAR EXERCISE