181.71% is the change from 82 to 231
Calculation steps:
[( 231 - 82 ) ÷ 82] x 100 = 181.71%
Formula
Percentage change = [(231 - 82) / 82] x 100
Subtract the new number by the original number
231 - 82 = 149
149 ÷ 82 = 1.8170731707317074
1.8170731707317074 x 100 = 181.71%