95.25% is the change from 421 to 822
Calculation steps:
[( 822 - 421 ) ÷ 421] x 100 = 95.25%
Formula
Percentage change = [(822 - 421) / 421] x 100
Subtract the new number by the original number
822 - 421 = 401
401 ÷ 421 = 0.9524940617577197
0.9524940617577197 x 100 = 95.25%