Which of the following support department allocation schedules contains an error? When allocating support departments to producing departments, companies may use "dual charge rates," which are preferred over single charge rates because. dual charge rates recognize that supporting departments have both fixed and variable costs, which should be allocated using separate allocation bases. dual charge rates recognize that supporting departments have both unit- and batch-level costs, which should be allocated using matching causal drivers. dual charge rates recognize that supporting departments have both indirect and direct costs, which should be allocated or traced as appropriate. dual charge rates recognize that supporting departments have both normal and abnormal costs, which should be assigned to direct cost or overhead respectively. Question 15 0.35pts Which of the following is a reason that a company may use the Net Realizable Value method to allocate joint processing costs? The sales value at split-off is unknown for one or more of the joint products. The gross margin percentage of the joint products is unknown. Even after processing the joint products to completion, there is no guaranteed market for one or more of the joint products. The sales value at the split-off point is does not capture the value of processing the products further. Wannabee Company manufactures a product with the following costs per unit at the expected production level of 84,000 units: The company has the capacity to produce 90,000 units. The product regularly sells for $120. A wholesaler has offered to pay $110 a unit for 7,500 units. If the special order is accepted, the effect on operating income would be a $249,000 increase. $429,000 increase. $495,000 increase. $75,000 decrease