Kennedy Inc. has the following data for its operation in August:

Increase in direct materials inventory 100 Sets Direct materials purchased (AQ) 1,600 Sets Finished goods manufactured 700 units Direct materials purchase-price variance $ 528 Favorable Budgeted Finished goods to manufacture 800 Units Direct materials purchases 2,000 Sets Direct materials per unit of finished goods 2 Sets Direct materials price per set (SP) $ 4.40

What was the actual purchase price (AP) per set of direct materials purchased (to two decimal places)?