A sporting goods manufacturer budgets production of 55,000 pairs of ski boots in the first quarter and 46,000 pairs in the second quarter of the upcoming year. Each pair of boots requires 2 kilograms (kg) of a key raw material. The company aims to end each quarter with ending raw materials inventory equal to 15% of the following quarter's material needs. Beginning inventory for this material is 16,500 kg and the cost per kg is $8. What is the budgeted materials purchases cost for the first quarter?