The inventory of ABC Company on November 30, 2019 shows 2250 units at 1370 per unit. In December 2019 ABC Company sold 7600 units at 1435 per unit. The following purchases were made during December 2019:

Dec. 10 1950 units at 1365 per unit

Dec. 15 2050 units at 1350 per unit

Dec. 25 1900 units at 1380 per unit

Requirement: 1. Calculate the gross profit and cost of goods sold for December 2019 and the inventory cost as of December 31, 2019, using the FIFO method.

2. Calculate the gross profit and cost of goods sold for December 2019 and the inventory cost as of December 31, 2019, using the LIFO method.

3. Calculate the gross profit and cost of goods sold for December 2019 and the inventory cost as of December 31, 2019, using the Weighted Average method.