Steinway Inc., the builder of large pianos and musical instruments is preparing its master budget for the second quarter. The following sales and production data have been forecast as: 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: 4lbs. How many pounds of raw materials should Steinway purchase in April