Required information Problem 17-27 Joint Costs (LO 17-4, 17-5) [The following information applies to the questions displayed below.] 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 $430,000 and results in 73,000 units of MSB and 103,000 units of CBL. Each MSB sells for $7, and each unit of CBL sells for $9. roblem 17-27 Part 1 equired: Calculate the amount of joint cost allocated to commercial building lumber (CBL) on a physical-units basis. (Round the calculation of Relative Proportion" to the nearest whole percent. Round your final answer to the nearest dollar amount.)