Cullumber Ltd. estimates sales for the second quarter of 2022 will be as follows.

Month Units

April 3,240

May 3,340

June 3,110

The target ending inventory of finished products is as follows. March 31 2,560

April 30 2,740

May 31 2,720

June 30 3,050

Two units of materials are required for each unit of finished product. Production for July is estimated at 3,360 units to start building inventory for the fall sales period. Cullumbers policy is to have an inventory of raw materials at the end of each month equal to 50% of the following months production requirements.

Raw materials are expected to cost $4 per unit throughout the period.

Calculate the May raw materials purchases in dollars

. Raw material purchases cost