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

April May June

Units to be produced $3,4103,7302,610$

A finished unit requires four ounces of a key direct material. The March $31$ Raw Materials Inventory has $9232$ ounces $($oz$.)$ of the material. Each month's ending Raw Materials Inventory should be $35\%$ of the following month's production needs. Materials purchases in May should be: