Sandhill Department Store uses a perpetual inventory system. Data for product E2-D2 includes the following purchases. On June 1, Sandhill sold 20 units, and on August 27, 30 more units. Calculate the weighted-average unit cost for each sale. (Round answers to 3 decimal places, e.g. 5.125.) June 1 sale Aug. 27 sale Compute the cost of goods sold using FIFO, LIFO, and moving-average methods. (Round answers to 0 decimal places, e.g. 125.)