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 $320,000 and results in 62,000 units of MSB and 92,000 units of CBL. Each MSB sells for $4, and each unit of CBL sells for $6.

Required: 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 answers to the nearest dollar amount.)