Need some help with the joint product cost in Market Values

Agnew Chemical Company makes three products, B7, K6, and X9, which are joint products from the same materials. In a standard batch of 332,800 pounds of raw materials, the company generates 75,300 pounds of B7, 156,600 pounds of K6, and 100,900 pounds of X9. A standard batch costs $3,328,000 to produce. The sales prices per pound are $10, $15, and $20 for B7, K6, and X9, respectively.