The Sandhill store has a beginning inventory on Jan $1$ of $300$ full size strollers at a cost of $$220$ per unit. During the year the following purchases were made:

March $1585$ units $$221$ each

July $2059$ units $$220$ each

Sept $425$ units $$218$ each

Dec $211$ units $$213$ each

At the end of the year, there were $36$ units on hand. Sandhill uses a periodic inventory system.

Determine the costs of goods available for sale