855.56% is the change from 18 to 172
Calculation steps:
[( 172 - 18 ) ÷ 18] x 100 = 855.56%
Formula
Percentage change = [(172 - 18) / 18] x 100
Subtract the new number by the original number
172 - 18 = 154
154 ÷ 18 = 8.555555555555555
8.555555555555555 x 100 = 855.56%