Answer:
FIFO: ending inventory: $9,528 COGS: $ 14,452
LIFO: ending inventory: $ 8,422 COGS: $ 15,558 (periodic)
LIFO: ending inventory $ 9,035 COGS ·$ 14,945 (perpetual)
Explanation:
June 1 Balance 304 units @ $13 3, 952
June 11 Purchased 804 units @ $15 12,060
June 20 Purchased 498 units @ $16 7, 968
Tota units 1,606 Cost available: 23,980
June 10 Sold 205 units @ $30
June 15 Sold 504 units @ $32
June 27 Sold 295 units @ $34
Total units: 1,004 units
Ending Inventory units: 1,606 - 1,004 = 602
FIFO:
first units are sold while last are ending inventory.
As we always pick from chronological order is the same under perpetual or periodic method.
Ending Inventory: 602 units
June 20 Purchased 498 units @ $16 7, 968 (602 - 498 = 104)
June 11 Purchased 104 units @ $15 1, 560
Total: 9,528
COGS: Difference between cost available and ending inventory:
23,980 - 9,528 = 14,452
LIFO:
first units are part of ending inventory. As the units aren't picked in chronological order the values cahnges under perpetual and periodic method.
periodic ending inventory:
June 1 Balance 304 units @ $13 3, 952 (602 - 304 = 298)
June 11 Purchased 298 units @ $15 4,470
Total 8,422
COGS: 23,980 - 8,422 = 15,558
perpetual method:
Inventory after 1st sale: 304 - 205 = 99 units at 13
Inventory after 2nd sale.
99 untis at 13
804-504 = 300 units at 15
Inventory after 3rd sale.
99 untis at 13 1,287
300 units at 15 4,500
498 - 295 = 203 units at 16 3,248
ending inventory: 9,035
COGS: 23,980 - 9,035 = 14,945