$19$

A company had the following purchases and sales during its first year of operations:

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$02$:$26$:$23$

$\backslash$table$[[,$Purchases,Sales$],[$January:$,11$ units at $$145,5$ units$],[$February:$,21$ units at $$150,6$ units$],[$May:$,16$ units at $$155,10$ units$],[$September:$,13$ units at $$160,9$ units$],[$November:$,11$ units at $$165,12$ units$]]$

On December $31,$ there were $30$ units remaining in ending inventory. Using the perpetual LIFO inventory costing method, what is the cost of the ending inventory? $($Assume all sales were made on the last day of the month.$)$