Current Attempt in Progress

Suppose that Amazon uses a periodic inventory system and reports the following for the month of June:

$($a$)$

Compute the cost of the ending inventory and the cost of goods $$old under $(1)$ FIFO, $(2)$ LIFO, and $(3)$ average$-$cost$.($Round average

cost per unit to $2$ decimal places, e$.$g$.5\mathrm{.}25$ and final answers to $0$ decimal places, e$.$g$.2,520.)$

FIFO

LIFO

AVERAGE$-$COST