Charm Enterprises production budget shows the following units to be produced for the coming three months:

Units to be produced:

April: 3,210 May: 3,530 June: 3,410

A finished unit requires three ounces of a key direct material. The March 31 Raw Materials Inventory has 3,177 ounces (oz.) of the material. Each months ending Raw Materials Inventory should be 30% of the following months production needs. The materials to be purchased during May should be: