Jorrey Company manufactures bookcases. Direct materials standards are 20 board feet of lumber per bookcase at a cost of $ 2.50 per board foot. During the month of July, Jorrey purchased 25,000 board feet of lumber at a total cost of $ 60,000. Production during July used 21,000 board feet of lumber to manufacture 1,000 bookcases. What are the direct materials price, usage, and inventory variances?