Sandhill Trading Company uses a periodic inventory system and has a beginning inventory as of April 1 of 255 tents. This consists of 255 tents purchased in February at a cost of $420 each. During April, the company had the following purchases and sales of tents. (a1) Determine cost of goods availabie for sale and ending inventory in units. Cost of goods avallable for sale $ Ending imventory in units