76.34% is the change from 131 to 231
Calculation steps:
[( 231 - 131 ) ÷ 131] x 100 = 76.34%
Formula
Percentage change = [(231 - 131) / 131] x 100
Subtract the new number by the original number
231 - 131 = 100
100 ÷ 131 = 0.7633587786259542
0.7633587786259542 x 100 = 76.34%