I thought I had to use the total of quantity / total cost to get the average cost per unit

Problem 8-6 (Part Level Submission) Ehlo Company is a multiproduct firm. Presented below is information concerning one of its products, the Hawkeye Date Transaction Quantity Price/Cost 1/1 Beginning inventory 2,420 2/4 Purchase 2/20 Sale 4/2 Purchase 11/4 Sale 3,420 3,920 4,420 3,620 $17 25 42 32 46 (a) Your answer is incorrect. Try again Calculate average-cost per unit. (Round answer to 2 decimal places, e.g. 2.76.) Average-cost per unit 109.88