200% is the change from 5 to 15
Calculation steps:
[( 15 - 5 ) ÷ 5] x 100 = 200%
Formula
Percentage change = [(15 - 5) / 5] x 100
Subtract the new number by the original number
15 - 5 = 10
10 ÷ 5 = 2
2 x 100 = 200%
Example