Accounting: Perpetual system Homework

Any notes on how answer is generated, thanks.

Feb.

1Inventory1,000 units @ $7

10Sale420 units

12Purchase1,000 units @ $7.50

15Sale1250 units

28Purchase1,000 units @ $8

31Sale700 units

1.Using FIFO:

a. What is the balance of merchandise inventory account at end February?

b. What is Gross Profit?

2.Using LIFO:

What is the balance of merchandise inventory account at end February?

b. What is the Gross Profit?

c. Journal entry for Feb.10 sale of 420 units