660% is the change from 20 to 152
Calculation steps:
[( 152 - 20 ) ÷ 20] x 100 = 660%
Formula
Percentage change = [(152 - 20) / 20] x 100
Subtract the new number by the original number
152 - 20 = 132
132 ÷ 20 = 6.6
6.6 x 100 = 660%
Example