84400% is the change from 1 to 845
Calculation steps:
[( 845 - 1 ) ÷ 1] x 100 = 84400%
Formula
Percentage change = [(845 - 1) / 1] x 100
Subtract the new number by the original number
845 - 1 = 844
844 ÷ 1 = 844
844 x 100 = 84400%
Example