78.72% is the change from 235 to 420
Calculation steps:
[( 420 - 235 ) ÷ 235] x 100 = 78.72%
Formula
Percentage change = [(420 - 235) / 235] x 100
Subtract the new number by the original number
420 - 235 = 185
185 ÷ 235 = 0.7872340425531915
0.7872340425531915 x 100 = 78.72%