-83.79% is the change from 845 to 137
Calculation steps:
[( 137 - 845 ) ÷ 845] x 100 = -83.79%
Formula
Percentage change = [(137 - 845) / 845] x 100
Subtract the new number by the original number
137 - 845 = -708
-708 ÷ 845 = -0.8378698224852071
-0.8378698224852071 x 100 = -83.79%