FIFO and LIFO Costs Under Perpetual Inventory System

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

Beginning inventory $,49$ units at $$48$

Sale $,37$ units at $$70$

First purchase $,19$ units at $$51$

Sale $,17$ units at $$72$

Second purchase $,23$ units at $$53$

Sale $,16$ units at $$73$

The firm uses the perpetual inventory system, and there are $21$ 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?

$$$