- methods of allocating joint costs - Calculate: using the relative sales value method to determine the allocation of joint costs. - Calculate: If processed further, the cost after split-off for XXX is RM 5,000;WV is RM2,000; TTT is RM10,000; and EEE is RM5,000. Using the adjusted sales value method to allocate the cost of the product. Q Variance: Standard cost system Caloulate the variances for: materials price variance, materials quantily variance, labour