598 Justin company just starting business made the following four inventory purchases in June: June 1 150 units $ 390 June 10 200 units June 15 200 units 600 June 28 150 units Total cost: $2.098 A physical count of merchandise inventory on June 30 reveals that there are 200 units on hand. Using the FIFO inventory method, the cost of the inventory for June is 510 O a $660. b. $540. Oc. $720 d. S640