Current Attempt in Progress Sandhill Company inc. had a beginning inventory of 110 units of Product RST at a cost of $7 per unit. During the year, purchases were: Sandhall Company uses a periodic imventory system. Sales totaled 1,520 units. (a) Determine the cost of goods avadable for sale. The cost of goods avaliable for sale. s Determine the ending imentory and the cost of goods sold under each of the assumed cost flow methods (FIFO, LIFO, and average-cost). (Round answers to 0 decimal places, eg. 150) eTextbook and Media Attempts: 0 of 3 used