83.4% is the change from 235 to 431
Calculation steps:
[( 431 - 235 ) ÷ 235] x 100 = 83.4%
Formula
Percentage change = [(431 - 235) / 235] x 100
Subtract the new number by the original number
431 - 235 = 196
196 ÷ 235 = 0.8340425531914893
0.8340425531914893 x 100 = 83.4%