A company made the following merchandise purchases and sales during the current month:

July 1 purchased 500 units at $15 each

July 5 purchased 300 units at $20 each

July 14 purchased 300 units at $25 each

July 20 purchased 250 units at $30 each

July 30 sold 575 units at $80 each

There was no beginning inventory.

What is the Cost of Goods Sold under FIFO?

What is the Cost of Goods Sold under LIFO?

What is the Cost of Goods Sold under Weighted Average?