Question

There are 24 students in a class. Three new students join the class. Work out the percentage change in the number of students in the class.

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Answer 1

12.5%

Explanation:

Intial number = 27

Final number = 24 + 3 = 27

Percentage change :-

• % change = 3/24 × 100
• % change = 100/8
• % Change = 25/2
• % change = 12.5 %

Answer 2

12.5% increase

Explanation:

To find the percentage increase ( students joined)

Take the new number minus the original amount

There are 27 students in the class after 3 joined

27 - 24 = 3

Divide by the original amount

3/24 = 1/8 = .125 = 12.5%