Please answer ALL requirements.

P16-28 (final answer) :3 Question Help The Southern Oil Company buys crude vegetable oil. Refining this oil results in four products at the splitoff point. A, B, C, and D. Product C is fully processed by the splitoff point. Products A, B, and D can individually be further refined into Super A, Super B, and Super D. In the most recent month (December), the output at the splitoff point was as follows: (Click the icon to view the information.) Read the requirements. Requirement 1. Compute the gross-margin percentage for each product sold in December, using the different methods for allocating the $40,000 joint costs. a. Compute the gross margin percentage using the sales value at splitoff method to allocate the joint costs. (Round the weights to four decimal places. Round the gross margin percentages to two decimal places, X.XX%. Use parentheses or a minus sign when entering negative gross margin percentages.) Super A Gross margin percentage Enter any number in the edit fields and then click Check Answer. 12 parts Clear All Check Answer remaining Product A, 250,000 gallons Product B, 95,000 gallons Product C, 45,000 gallons Product D, 110,000 gallons The joint costs of purchasing and processing the crude vegetable oil were $40,000. Southern had no beginning or ending inventories. Sales of product C in December were $60,000. Products A, B, and D were further refined and then sold. Data related to December are as follows: Separable Processing Costs to Make Super Products Revenues Super A $ 170,000 $ 250,000 Super B 60,000 100,000 Super D 5,000 25,000 Southern had the option of selling products A, B, and D at the splitoff point. This alternative would have yielded the following revenues for the December production: Product A, $40,000 Product B, $30,000 Product D, $70,000 Requirements 1. Compute the gross-margin percentage for each product sold in December, using the following methods for allocating the $40,000 joint costs: a. Sales value at splitoff b. Physical measure c. NRV Could Southern have increased its December operating income by making different decisions about the further processing of products A, B, or D? Show the effect on operating income of any changes you recommend. 2. Print Done