High€“low method€”missing amounts. The following data have been extracted from the records of Puzzle, Inc.:

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 20,000 units.
d. Identify the two key cost behavior assumptions made in the calculation of your answer to partc.

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Production level, in units Variable costs. February 12,000 $21,000 August 18,000 . .. Mixed costs. Total costs 18,000 $70,000 31,000 2 $88,000 .