Selected financial information for Greek Food Producers is presented in the following table (000s omitted). Beginning raw materials inventory $310 Ending raw materials inventory $240 Direct labor $340 Operating expenses $690 Purchases of direct materials $410 Beginning work in process inventory $380 Ending work in process inventory $600 Sales revenue $4500 Manufacturing overhead $820 Beginning finished goods inventory $290 Ending finished goods inventory $260 What was operating income? $2960 $2360 $4500 $3740