L 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 P300,000 and results in 60,000 units of MSB and 90.000 units of CBL. Each MSB sells for P2 per unit, and each CBL sells for P4 per unit. Assuming no further processing work is done after the split-off point, the amount of joint cost allocated to commercial building lumber (CBL) on a physical quantity allocation basis would be: