Inventory information for Part 311 of Chi Corp. discloses the following information for the month of June (beginning balance of the month =0):

June 1. Purchased 600 units @ $16

June 11. Purchased 800 units @ $19

June 15. Sold 300 units @ $40

June 20. Purchased 600 units @ $21

June 27. Sold 200 units @ $43

a) If Chi Corp. uses LIFO and Perpetual system, then, what is the unit cost of the inventories sold on June 15? Why?

b) If Chi Corp. uses LIFO and Periodic system, then, what is the unit cost of the inventories sold on June 15? Why?

c) Calculate the total quantity (in units) of goods available for sale, and (in units) ending inventory do NOT compute total value of ending inventory balance. Show your calculation.

Compute cost of goods available for sale (in USD). Show your calculation.