A company has the following transactions during March:

March $3$ Purchases inventory on account for $$3,500,$ terms $\frac{2}{10},\frac{n}{30}.$

March $5$ Pays freight costs of $$200$ on inventory purchased on March $3.$

March $6$ Returns inventory with a cost of $$500.$

March $12$ Pays the full amount due on March $3$ purchase.

March $29$ Sells all inventory purchased on March $3($less those returned on March $6)$ for $$5,000$ on account.

Record all transactions, including the month$-$end adjustment to cost of goods sold, assuming the company uses a periodic inventory system and has no beginning inventory.