Sunland Department Store uses a perpetual inventory system, Data for product E2-D2 includes the following purchases. On June 1, Sunland sold 20 units, and on August 27,30 more units. (a1) Your answer is correct. Calculate the weighted-avernge unit cost for each sale. (Round answers to 3 decimal ploces, es. 5.125.) June 1 sale Aug 27 sale S 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 Attempts: 1 of 6 u (a2) Compute the cost of goods sold using FIFO, LIFO, and moving-average methods. (Round answers to 0 decimal places, es. 125.)