4 (10 marks) Refer to the following table for the salary tax rates of Hong Kong for a given year of assessment. Net Chargeable Income Rate $ On the first 50,000 3% On the next 50,000 7% On the next 50,000 11% On the next 50,000 15% Remainder 17% The standard tax rate on net income is 15%. Chloe is a permanent Hong Kong resident living in Hong Kong. For the year of assessment, she has a total income of $1,670,000, deductions of $108,000, and allowances of $632,000. (a) Calculate Chloe's amount of salary tax payable for the year. Show all your calculations. (8 marks) (b) Suggest TWO retirement planning tools which would help Chloe reduce her salary tax payable in the next few years and at the same time provide her with some incomes for her future retirement life. (2 marks)