6) Santa Fe Tile Company had the following inventory purchases and sales during the month of May. The company uses the periodic inventory method. Sales Units Unit Price Total Purchases Date / Units Unit Cost May 1 100 $4 5 200 5 10 15 1006 20 150 7 Total $400 1,000 100 $10 $1,000 T 600 1,050 20011 $2,200 30 160 710 1,280 $4,330 Totals 300 $3,200 If Santa Fe uses periodic average costing, how much was the COGS and ending inventory ($) balance