$(2)3-$ J&G Company sells decorative materials for homes. The decorative lamp, which is one of the products of J&G$,$ is sold at $$60$ in the current market and unit cost is $$40.$ Company managers think about adding some materials to this lamp. The additional materials will cause a $$6$ increase in the production cost of the lamp and after that process, the lamp can be sold at $$65.$ Should the lamp be processed further? Make an incremental analysis to support your decision.

$14$:$25$