Perpetual inventory using LIFO

The following units of a particular item were available for sale during the calendar year:

Jan. $1$

Inventory

$4,100$ units at $$41$

Apr. $19$

June $30$

Sale

$2,500$ units

Sept. $2$

$4,400$ units at $$45$

Nov. $15$

Purchase

$5,000$ units

Inventory Unit Cost column.

Dec. $31$ Balances