FIFO and LIFO Costs Under Perpetual Inventory System

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

Beginning inventory $29$ units at $$41$

Sale

$21$ units at $$64$

First purchase

$29$ units at $$44$

Sale

$22$ units at $$66$

Second purchase

$30$ units at $$46$

Sale

$27$ units at $$67$

The firm uses the perpetual inventory system, and there are $18$ units of the item on hand at the end of the year.

a$.$ What is the total cost of the ending inventory according to FIFO?

$

b$.$ What is the total cost of the ending inventory according to LIFO?