95.71% is the change from 420 to 822
Calculation steps:
[( 822 - 420 ) ÷ 420] x 100 = 95.71%
Formula
Percentage change = [(822 - 420) / 420] x 100
Subtract the new number by the original number
822 - 420 = 402
402 ÷ 420 = 0.9571428571428572
0.9571428571428572 x 100 = 95.71%