The following data have been extracted from the records of Puzzle Incorporated: 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 14,504 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. Calculate the missing costs. Note: Do not round intermediate calculations