84200% is the change from 1 to 843
Calculation steps:
[( 843 - 1 ) ÷ 1] x 100 = 84200%
Formula
Percentage change = [(843 - 1) / 1] x 100
Subtract the new number by the original number
843 - 1 = 842
842 ÷ 1 = 842
842 x 100 = 84200%
Example