Answer:
The joint cost allocated to Q under the net-realizable-value method would be $62,400.
Explanation:
Note: See the attached excel file for the Calculation of the increase or decrease in profit if the products are processed further using net-realizable-value method to allocate Joint Cost.
From the attached excel file, the Product Q Share of joint costs at split-off (in bold red color is $62,400.
Therefore, the joint cost allocated to Q under the net-realizable-value method would be $62,400.