Coaching Centre
Chapter 1: Financial mathematics Notes
Percentage increase and decrease, profit, loss and discounts, wages, salaries, overtime, commission and income tax, simple interest, compound interest and depreciation.
Sections
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1A Percentage increase, profit and discounts Mastered
Increasing and decreasing by a percentage with multipliers, percentage change, profit and loss, discounts, GST and finding the original price.
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1B Income and tax Mastered
Wages, salaries, overtime, commission and piecework, gross and net pay, taxable income, PAYG tax and tax refunds.
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1C Simple interest Mastered
The simple interest formula I = Prn, finding the total amount, and rearranging to find the rate, principal or time.
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1D Compound interest and depreciation Mastered
Compound interest as repeated percentage increase, the formula A = P(1 + r)^n, depreciation with A = P(1 â r)^n, and comparing simple and compound interest.