Periodic inventory by three methods

The units of an item available for sale during the year were as follows:

Jan. $1$ Inventory $2,200$ units at $$7$

Feb. $17$ Purchase $3,700$ units at $$8$

Jul. $21$ Purchase $2,700$ units at $$9$

Nov. $23$ Purchase $1,400$ units at $$10$ perform the required analysis, and input your answers in the questions below.

Open spreadsheet

a$.$ Determine the inventory cost by the first$-$in$,$ first$-$out method.

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b$.$ Determine the inventory cost by the last$-$in$,$ first$-$out method.

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c$.$ Determine the inventory cost by the weighted average cost method. Round your answer to the nearest dollar.