Assume the sales budget for April and May is 42,000 units and 44,000 units, respectively. The production budget for the same two months is 39,000 units and 40,000 units, respectively. Each unit of finished goods required 4 pounds of raw materials. The company always maintains raw materials inventory equal to 30% of the following months production needs. If the company pays $2.55 per pound of raw material, then what is the estimated cost of raw material purchases for April?