Below is the balance and purchase information of frozen burger in HTM Catering. Please calculate Goods Available for Sale. Then, find out the value of ending inventory and cost of goods sold using FIFO, LIFO, and Weighted Average valuation method.

June 1 balance forward from May 3 units at $10

June 6 purchase 8 units at $12

June 15 purchase 15 units at $11

June 22 purchase 6 units at $13

June 30 ending balance 10 units