Maths

• Percentages

Find the percentage of... i.e. 25% of £480=£120

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  • Compound interest

Use Multipliers i.e. Increase of 7%=1.07; decrease of 7%=0.93

Multiply the multiplier with the principal amount i.e. 1.07 X £250

Use a power to get the interest for a 'multiple' period. i.e. 1.073 X £250 to get the interest for 3 years/months etc.

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  • Appreciation & Depreciation

When the value of something rises in value over…