Help please

Question 1 1 pts Desert Company has a beginning balance in inventory of 431 units at $4.20 per unit. A record of transactions for the month of May is as follows: Purchases Sales May # Cost May # Price 4 1,300 $4.10 3 200 $7.00 14 700 $4.40 12 900 $7.50 29 500 $4.55 25 1,400 $8.00 Calculate Cost of Goods Sold in dollars using an Average Cost Periodic inventory costing system. Round to the nearest dollar