55.82% is the change from 421 to 656
Calculation steps:
[( 656 - 421 ) ÷ 421] x 100 = 55.82%
Formula
Percentage change = [(656 - 421) / 421] x 100
Subtract the new number by the original number
656 - 421 = 235
235 ÷ 421 = 0.5581947743467933
0.5581947743467933 x 100 = 55.82%