131% is the change from 100 to 231
Calculation steps:
[( 231 - 100 ) ÷ 100] x 100 = 131%
Formula
Percentage change = [(231 - 100) / 100] x 100
Subtract the new number by the original number
231 - 100 = 131
131 ÷ 100 = 1.31
1.31 x 100 = 131%
Example