Westerville Company accumulates the following data concerning a mixed cost, using units produced as the activity level. Units Produced Total Cost March 10,000 $18,000 April 9,000 16,650 May 10,500 18,580 June 8,800 16,200 July 9,500 17,100 (a1) Your answer is correct. Compute the unit variable costs using the high-low method. (Round answer to 2 decimal places e.g. 2.25.) Unit variable costs $ 14 Attempts: 1 of 1 used