Selected financial information for Raider Red Manufacturing is presented in the following table (000s omitted). Sales revenue Purchases of direct materials Direct labor Manufacturing overhead Operating expenses Beginning raw materials inventory Ending raw materials inventory Beginning work in process inventory Ending work in process inventory $4600 $440 $520 $650 $690 $270 $200 $330 $490 Beginning finished goods inventory $280 Ending finished goods inventory $260 What was the cost of direct materials used? $510 $470 $440 $710