82800% is the change from 1 to 829
Calculation steps:
[( 829 - 1 ) ÷ 1] x 100 = 82800%
Formula
Percentage change = [(829 - 1) / 1] x 100
Subtract the new number by the original number
829 - 1 = 828
828 ÷ 1 = 828
828 x 100 = 82800%
Example