Mathematics for IGCSE & O level - Percentages (Section 3 - No. 9)
Key points in percentages include:
A percentage is equivalent to a fraction with the percentage as the numerator and 100 as the denominator.
To find a percentage of a quantity, multiply the quantity by the fraction or decimal equivalent to the percentage.
Simple interest is added to the original investment.
Compound interest is added to the original investment.
Wyjaśnienie
The key points regarding percentages include: calculating percentages as fractions, applying percentages to find a quantity, and the application of compound interest.