"The Company sells consumer products. Trading volume is fluctuating due to the unstable market demand. Yet, the overall business development is promising thanks to the diligent management efforts made. An annual growth rate of 3% in net income is targeted in order to provide a value-for-money investment return for the shareholders. Other operating expenses mainly represented items such as staff costs and monthly rent. Repairs and maintenance expense was incurred and paid at the same time when repairing activities took place." HS One Limited Statement of Profit or Loss For the years ended 31 December 2017, 2018, and 2019 Year 2019 S 112,860 (2.257) 110,603 Year 2018 s 104,500 Year 2017 $ 110,000 Sales revenue Less: Sales discount Net sales 104,500 110,000 Less: Cost of goods sold Gross profit (85,386) 25,217 (82.555) 21,945 (86,350 23,650 Other operating expenses Repairs and maintenance expense (11,060) (6,570) (10,450) (4,130) (11.000) (5.500) Net income 7,587 7,365 7-150 Required: (a) Compute the index-number trend percents for below accounts for each of the three years, using year 2017 as the base year. (0) Net sales; and Net income. (6 marks) (b) (c) Express the statement of profit or loss above in common-size percents for 2017 to 2019. (21 marks) For item in Part (a) above, analyze the trend, the observed results, and the likely reason(s) behind respectively. (3 marks) Identify the most likely earnings management technique used regarding "repairs and maintenance expense". Support your answer with explanation. (8 marks) (d)