Butterfly Corp. manufactures products M1 and M2 from a joint process, which also yields a by-product, B1. Butterfly accounts for the revenues from its by-product sales as other income. Additional information follows: Units produced M1 27,600 M2 B1 Allocated joint costs ? 13,100 ? 9,400 ? Sales value at split-off $366,000 $244,000 $91,000 Total 50,100 $340,000 $701,000 Required: Assuming that joint product costs are allocated using the net realizable value at split-off approach, what was the joint cost allocated to product M1? (Do not round intermediate calculations.) Joint cost of product M1