92.38% is the change from 420 to 808
Calculation steps:
[( 808 - 420 ) ÷ 420] x 100 = 92.38%
Formula
Percentage change = [(808 - 420) / 420] x 100
Subtract the new number by the original number
808 - 420 = 388
388 ÷ 420 = 0.9238095238095239
0.9238095238095239 x 100 = 92.38%