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Problem $17-27$ Joint Costs $($LO $17-4,17-5)$

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Snake River Sawmill manufactures two lumber products from a joint milling process. The two products developed are mine support braces $($MSB$)$ and unseasoned commercial building lumber $($CBL$).$ A standard production run incurs joint costs of $$440,000$ and results in $74,000$ units of MSB and $104,000$ units of CBL$.$ Each MSB sells for $$8,$ and each unit of CBL sells for $$4.$

Problem $17-27$ Part $4$

$4.$ If Snake River Sawmill chose not to process the mine support braces beyond the split$-$off point, the contribution from the joint milling process would increase or decrease by what amount?

The contribution of MSB would