70.13% is the change from 231 to 393
Calculation steps:
[( 393 - 231 ) ÷ 231] x 100 = 70.13%
Formula
Percentage change = [(393 - 231) / 231] x 100
Subtract the new number by the original number
393 - 231 = 162
162 ÷ 231 = 0.7012987012987013
0.7012987012987013 x 100 = 70.13%