View Policies Current Attempt in Progress Westerville Corp. has collected the following data concerning its maintenance costs for the past six months: Units Produced Total Cost July 17,200 $29,680 August 33,000 48,700 September 37,000 55,000 October 22,400 38,400 November 40,700 65,400 December 38,000 62,300 (a1) Calculate the variable cost per unit using the high-low method. (Round variable cost per unit to 2 decimal places, e.g. 12.25.) Variable cost $ per unit