Portofino Manufacturing Corporation Manufactures Three Products in a Joint Process

Portofino Manufacturing Corporation manufactures three products in a joint process. Additional information is as follows:
$\begin{array}{lrrrrr}\text { Product } & \mathrm{J} & \mathrm{K} & \mathrm{L} & \text { Total }\\\text { Units produced } & 16,000 & 4,000 & 2,000 & 22,000 \\\text { Sales value at split-off } & \$ 300,000 & \$ 100,000 & \$ 20,000 & \$ 420,000 \\\text { Additional costs if}\\\text { processed further}&\$ 48,000& \$ 20,000& \$ 6,000&\$ 74,000\\\text { Sales value if}\\\text { processed further }&\$340,000&\$160,000&\$40,000&\$450,000\\\text { Joint Costs }&&&&\$120,000\end{array}$

Required:
(a) Allocate the joint costs to the three products using the net realizable value method.
(b) Determine which products should be sold at split-off and which products should be processed further.