Answer:
FIFO
COGS_ 3900
Ending Inventory: 8,850
LIFO
Total COGS 4350
Ending Inventory 8,400
W/A
COGS 4.080
Ending Inventory 8,670
Explanation:
Date event units price subtotal
1 Beginning 300 5 1500
8 Purchase 450 8 3600
29 Purchase 850 9 7650
available 1600 12750
inventory at hand 1,000
sales 600 units
FIFO we sale the first units:
thus 300 at $5
and 300 at $8
total COGS = 3900
Ending Inventory: 12,750 - 3,900 = 8,850
LIFO we sale the latest unit but, as sales occur before Jan 29th we don0t use those.
450 at 8
150 at 5
Total COGS 4350
Ending Inventory 12,750 - 4,350 = 8,400
W/A
We do the average excluding Jan 29 as it wasn't purchase when we sale:
sales value / units
(1,500 + 3,600) / (300 + 450) = 6.8
COGS 600 units x $6.8 = 4.080
Ending Inventory 12,750 - 4,080 = 8,670