31.25% is the change from 176 to 231
Calculation steps:
[( 231 - 176 ) ÷ 176] x 100 = 31.25%
Formula
Percentage change = [(231 - 176) / 176] x 100
Subtract the new number by the original number
231 - 176 = 55
55 ÷ 176 = 0.3125
0.3125 x 100 = 31.25%
Example