Perpetual Inventory Using LIFO

Beginning inventory, purchases, and sales for Item $88-$HX are as follows:

Jan. $1$ Inventory $86$ units @ $$34$

$8$ Sale $69$ units

$15$ Purchase $95$ units @ $$36$

$27$ Sale $80$ units

Assuming a perpetual inventory system and using the last$-$in$,$ first$-$out $($LIFO$)$ method, determine $($a$)$ the cost of goods sold on Jan. $27$ and $($b$)$ the inventory on Jan. $31.$

a$.$ Cost of goods sold on Jan. $27$ $fill in the blank $1$

b$.$ Inventory on Jan. $31$ $