Mathematics for IGCSE & O level - Percentages (Section 3 - No. 49)
Which of the following statements is/are true regarding percentage change?
Percentage change always involves a fraction.
Percentage increase is calculated as (change/original) * 100
Percentage decrease can never be greater than 100%
Percentage profit is calculated based on selling price.
解释
Percentage change utilizes a fraction that helps determine the proportional change. Percentage increase is correctly calculated using the given formula.