Adriana Corporation manufactures football equipment. In planning for next year, the managers want to understand the relation between activity and overhead costs. Discussions with the plant supervisor suggest that overhead seems to vary with labor-hours, machine-hours, or both. The following data were collected from last year's operations. Month Labor-Hours Machine-Hours Overhead Costs 1234 in 720 1,348 $ 102,692 725 1,406 103,813 690 1,520 109,854 750 1,452 108,257 5 775 1,595 116,246 6 750 1,584 114,568 7 745 1,393 106,948 8 715 1,311 102,046 9 710 1,452 106,387 10 800 1,553 113,173 11 670 1,290 99,220 12 710 1,610 111,540 Required: a. Use the high-low method to estimate the fixed and variable portions of overhead costs based on machine-hours. b. Managers expect the plant to operate at a monthly average of 1,700 machine-hours next year. What are the estimated monthly overhead costs, assuming no inflation? Complete this question by entering your answers in the tabs below. Required A Required B Use the high-low method to estimate the fixed and variable portions of overhead costs based on machine-hours. (Round "Variable cost" answer to 2 decimal places.) Variable cost (per machine hour) Fixed cost Required A Required B Managers expect the plant to operate at a monthly average of 1,700 machine-hours next year. What are the estimated monthly overhead costs, assuming no inflation? Overhead costs < Required A Required B