FIFO and LIFO Costs Under Perpetual Inventory System

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

Beginning inventory $45$ units at $$45$

Sale $17$ units at $$70$

First purchase $37$ units at $$46$

Sale $40$ units at $$71$

Second purchase $23$ units at $$49$

Sale $32$ units at $$72$

The firm uses the perpetual inventory system, and there are $16$ 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?

$fill in the blank $1$

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