Q2: suppose that in Q1 above rather than selling Lo-grade coal, CCC can incur additional processing costs of $50,000 and sell Mid-grade coal for $550,000. Required 1- Using the estimated net realizable value method: a- allocate the joint processing costs to each product. b- Compute the cost per unit c- Compute the gross margin for each product. 2- Using the Physical Quantities Method a- Allocate the joint processing costs to each product. b- Compute the cost per unit. c- Compute the gross margin for each product.