The following data have been extracted from the records of Puzzle Incorporated: Production level, in units Variable costs Fixed costs February 9,700 $ 24,250 August 19,400 $ 7 7 39,300 21,981 Mixed costs Total costs Required: a. Calculate the missing costs. $ 85,531 $ 126,562 b. Calculate the cost formula for mixed cost using the high-low method. c. Calculate the total cost that would be incurred for the production of 15,243 units. d. Identify the two key cost behavior assumptions made in the calculation of your answer to part c. Complete this question by entering your answers in the tabs below. Required A Required B Required C Required D Calculate the missing costs. Note: Do not round intermediate calculations. February August Production level, in units 9,700 19,400 Variable costs $ 24,250 Fixed costs 39,300 Mixed costs Total costs 21,981 $ 85,531 $ 126,562 Required A Required B >