please answer all requirements and follow any rounding instructions :)

Academy Press produces textbooks for high school accounting courses. The company recently hired a new editor, Jean Green, to handle production and sales of books for an introductory accounting course. Jean's compensation depends on the gross margin associated with sales of this book. Jean needs to decide how many copies of the book to produce. The following information is available for the fall semester 2020: (Click the icon to view the information.) Jean has decided to produce either 15,000, 21,000 or 31,500 books. Read the requirements GER Requirement 1. Calculate expected gross margin if Jean produces 15,000, 21,000, or 31,500 books. (Make sure you include the production-volume variance as part of cost of goods sold) Calculate the gross margin for each level of production. Begin with 15,000 books, then 21,000 books, and lastly 31,500 books. (Enter a "0" for any zero balance accounts. If an account does not have a variance, do not select a label) 15,000 books Revenues Cost of goods sold Production-volume variance Net cost of goods sold Gross margin 1 More info Estimated sales 15,000 books Beginning inventory O books Average selling price $75 per book Variable production costs $52 per book Fixed production costs $315,000 per semester The fixed-cost allocation rate is based on expected sales and is therefore equal to $315,000 + 15,000 books = $21 per book. Academy Press produces textbooks for high school accounting courses. The company recently hired a new editor, Jean Green, to handle production and sales of books for an introductory accounting course. Jean's compensation depends on the gross margin associated with sales of this book. Jean needs to decide how many copies of the book to produce. The following information is available for the fall semester 2020 Click the icon to view the information) Jean has decided to produce either 15,000, 21,000 or 31,500 books. Read the requirements Requirement 1. Calculate expected gross margin if Jean produces 15,000, 21,000 or 31,500 books. (Make sure you include the production-volume variance as part of cost of goods sold.) Calculate the gross margin for each level of production. Begin with 15,000 books, then 21,000 books, and lastly 31,500 books. (Enter a "O" for any zero balance accounts. If an account does not have a variance, do not select a label) 15,000 books Revenues Cost of goods sold Production-volume variance Net cost of goods sold Gross margin Requirements 1. Calculate expected gross margin if Jean produces 15,000, 21,000, or 31,500 books. (Make sure you include the production-volume variance as part of cost of goods sold.) 2. Calculate ending inventory in units and in dollars for each production level 3. Managers who are paid a bonus that is a function of gross margin may be inspired to produce a product in excess of demand to maximize their own bonus. There are metrics to discourage managers from producing products in excess of demand. Do you think the following metrics will accomplish this objective? Show your work a. Incorporate a charge of 10% of the cost of the ending inventory as an expense for evaluating the manager Include nonfinancial measures when evaluating management and rewarding performance b