1055% is the change from 20 to 231
Calculation steps:
[( 231 - 20 ) ÷ 20] x 100 = 1055%
Formula
Percentage change = [(231 - 20) / 20] x 100
Subtract the new number by the original number
231 - 20 = 211
211 ÷ 20 = 10.55
10.55 x 100 = 1055%
Example