A company processes a raw material into products A, B, and C. Each unit of raw material produces 5 units of A, 2 units of B, and 3 units of C. Joint processing costs to the split-off point are $15 per unit. Further processing results in the following per-unit figures:

A B C

Additional processing costs per unit $28 $30 $25

Selling price per unit $30 $35 $35

If joint costs are allocated based on the net realizable value (NRV) of finished product, what proportion of joint costs should be allocated to A?

Group of answer choices 20% 50% 33.3% 46.1%