82100% is the change from 1 to 822
Calculation steps:
[( 822 - 1 ) ÷ 1] x 100 = 82100%
Formula
Percentage change = [(822 - 1) / 1] x 100
Subtract the new number by the original number
822 - 1 = 821
821 ÷ 1 = 821
821 x 100 = 82100%
Example