I need some help understanding how to use moving average cost.

Brief Exercise 6-10 a-c (Part Level Submission) Sunland Department Store uses a perpetual inventory system. Data for product E2-D2 include the following purchases. Date Number of Units Unit Price 50 $10 May 7 July 28 30 15 On June 1, Sunland sold 20 units, and on August 27, 40 more units. (C) Prepare the perpetual inventory schedule for the above transactions using moving average cost. answers to o decimal places, e.g. 1,250.) Product E2-D2 Purchases Cost of Goods Sold Date Balance May 7 C June 1 s July 28 Aug. 27