4. Jenyshop Corporation produces three products at a joint manufacturing cost of $2,500,000. The following information has been provided : Product Volume Further Processing Costs Selling price perunit ($) ($) A 25,000 1,500,000 80 B 40,000 1,500,000 100 C 35,000 420,000 40 Required: Allocate the joint costs using gross margin percentage method