Addams, Incorporated, is preparing its master budget for the second quarter. The following sales and production data have been forecasted: April May June July August Unit sales 400 500 520 480 540 Finished goods inventory on March 31: 120 units Raw materials inventory on March 31: 450 pounds Desired ending inventory each month: Finished goods: 30% of next month's sales Raw materials: 25% of next month's production needs Number of pounds of raw material required per finished unit: 4 pounds How many pounds of raw materials should be purchased in April?