Assignment Exercise 8-14 Analyzing Mixed Costs The edication coordinator decides that the community college packs may be unduly influencing the high-low comptutation. She decides to rerun the results, omitting the community college wolume. Reguired 1. Waing the monthly utilization information presented here, and omitting the community college training packs, find the fixed and variable portion of costs through the high-low method. Note that the college only acquires packs in three months of the year: January, May, and September. These dates coincide with the start dates of their semesters and summer school. 2. The reason the education coordinator needs to know how much of the cost is fixed is because she is supposed to collect the appropriate variable cost from the community college for their packs. For her purposes, which computation do you believe is better? Why? Example 8B: Contribution Margin Computation of a contribution margin is simplified if the fixed and variable expense has already been determined. Examine Table 8-1, which contains Operating Room fixed and variable costs