57.14% is the change from 147 to 231
Calculation steps:
[( 231 - 147 ) ÷ 147] x 100 = 57.14%
Formula
Percentage change = [(231 - 147) / 147] x 100
Subtract the new number by the original number
231 - 147 = 84
84 ÷ 147 = 0.5714285714285714
0.5714285714285714 x 100 = 57.14%