Horace Company manufacturers a professional-grade vacuum cleaner and began operations in 2017. For 2017, Horace budgeted to produce and sell 25,000 units. The company had no price, spending, or efficiency variances and writes off production-volume variance to cost of goods sold. Actual data for 2017 are given as follows: Data: Units produced 21,000 Units sold 18,500 Selling price $432 Variable cost: Manufacturing cost per unit produced: Direct materials $33 Direct manufacturing labor $23 Manufacturing Overhead $62 Marketing cost per unit sold $46 Fixed cost: Manufacturing costs $1,550,000 Administrative costs $906,000 Marketing costs $1,479,000 Requirements: 1. Prepare a 2017 income statement for Horace Company using variable costing. 2. Prepare a 2017 income statement for Horace Company using absorption costing. 3. Explain the differences in operating incomes obtained in requirements 1 and 2. 4. Horace's management is considering implementing a bonus for the supervisors based on gross margin under absorption costing. What incentives will this bonus plan create for the supervisors? What modifications could Horace management make to improve such a plan? Explain briefly.