Use Apple's financial statements in Appendix A to answer the following. Required: 1. Compute Apple's profit margin for fiscal years ended (a) September 28, 2019, and (b) September 29, 2018. 2. Is Apple's profit margin on a favorable or unfavorable trend? 3. For the fiscal year ended September 28, 2019, what amount is credited to Income Summary to summarize its revenues earned? Hint make sure to consider any "Other income" reported on Apple's income statement. 4. For the fiscal year ended September 28, 2019, what amount is debited to Income Summary to summarize its expenses incurred? Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Required 4 Compute Apple's profit margin for fiscal years ended (a) September 28, 2019, and (b) September 29, 2018. (Round your percentage answers to 1 decimal place.) (a) September 28, 2019 (b) September 29, 2018 % %