Blossom Corp. has collected the following data concerning its maintenance costs for the past 6 months. Units Produced Total Cost July 21,550 $44,415 August 38,304 57,456 September 43,092 65,835 October 26,334 45,486 November 47,880 89,176 December 45,486 74,214 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 $