Question 5 of 10 < > 0.25/1 Cullumber Company accumulates the following data concerning a mixed cost, using units produced as the activity level. Units Produced Total Cost March 12,800 $23,040 April 11,520 21,240 May 13,440 23,744 June 11,120 20,612 July 12,160 21,840 (a1) Your answer is correct. Compute the variable cost per unit using the high-low method. (Round answer to 2 decimal places, e.g. 2.25.) Variable cost per unit 1.35