Cullumber Company accumulates the following data concerning a mixed cost, using units produced as the activity level. ch March April May June July Units Produced Total Cost 9,880 $20,812 19,181 21,061 18,691 19,611 9,030 10,400 8,820 9,540 pu (a1) abl Compute the variable cost per unit using the high-low method. de (Round answer to 2 decimal places e.g. 2.25.) INK Variable cost per unit Attempts: 0 of 3 used