760% is the change from 20 to 172
Calculation steps:
[( 172 - 20 ) ÷ 20] x 100 = 760%
Formula
Percentage change = [(172 - 20) / 20] x 100
Subtract the new number by the original number
172 - 20 = 152
152 ÷ 20 = 7.6
7.6 x 100 = 760%
Example