The following data have been extracted from the records of Puzzle Inc.: February August 11,400 18,240 Production level, in units ? Variable costs Fixed costs $31,920 ? 32,400 Mixed costs 27,798 Total costs $92,118 $125,429 Required: a. Calculate the missing costs. 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 14,136 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 C Required B Required D Calculate the missing costs. (Do not round intermediate calculations.) February August 18,240 Production level, in units 11,400 $ Variable costs 31,920 Fixed costs 32,400 Mixed costs 27,798 $ Total costs 92,118 125,429 Required B Required A