84.42% is the change from 231 to 426
Calculation steps:
[( 426 - 231 ) ÷ 231] x 100 = 84.42%
Formula
Percentage change = [(426 - 231) / 231] x 100
Subtract the new number by the original number
426 - 231 = 195
195 ÷ 231 = 0.8441558441558441
0.8441558441558441 x 100 = 84.42%