In July, Greenwood Company purchased materials costing $32,100 and incurred direct labor cost of $18,900, and transferred $1,000 of materials to overhead. Manufacturing overhead totaled $35,200 for the month. Information on inventories was as follows: July 31 July 1 Materials $1,000 $4,320 Work in process 1,320 770 Finished goods 3,630 2,970 What was the cost of direct materials used in production for the month of July? O $19,780 O $21,210 O $21,850 O $27,780