-99.76% is the change from 845 to 2
Calculation steps:
[( 2 - 845 ) ÷ 845] x 100 = -99.76%
Formula
Percentage change = [(2 - 845) / 845] x 100
Subtract the new number by the original number
2 - 845 = -843
-843 ÷ 845 = -0.9976331360946745
-0.9976331360946745 x 100 = -99.76%