Units produced Allocated joint costs Sales value at split-off Mi 22,500 2 $420,000 M2 13,500 ? $280,000 B1 9,000 2 $100,000 Total 45,000 $400,000 $800,000 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