-99.64% is the change from 845 to 3
Calculation steps:
[( 3 - 845 ) ÷ 845] x 100 = -99.64%
Formula
Percentage change = [(3 - 845) / 845] x 100
Subtract the new number by the original number
3 - 845 = -842
-842 ÷ 845 = -0.9964497041420118
-0.9964497041420118 x 100 = -99.64%