Cost flow methods

The following three identical units of Item P$401$C are purchased during April:

Date Item Beta Units Cost

Apr. $2$ Purchase $1$ $$171$

Apr. $15$ Purchase $1174$

Apr. $20$ Purchase $1177$

Total $3$ $$522$

Average cost per unit $($$$522-$: $3$ units$)$ $$174$

Assume that one unit is sold on April $27$ for $$221.$

Determine the gross profit for April and ending inventory on April $30$ using the $($a$)$ first$-$in$,$ first$-$out $($FIFO$)$; $($b$)$ last$-$in$,$ first$-$out $($LIFO$)$; and $($c$)$ weighted average cost method.

Line Item Description Gross Profit Ending Inventory

a$.$ First$-$in$,$ first$-$out $($FIFO$)$ $fill in the blank $1$

$fill in the blank $2$

b$.$ Last$-$in$,$ first$-$out $($LIFO$)$ $fill in the blank $3$

$fill in the blank $4$

c$.$ Weighted average cost $fill in the blank $5$

$fill in the blank $6$