-84.02% is the change from 845 to 135
Calculation steps:
[( 135 - 845 ) ÷ 845] x 100 = -84.02%
Formula
Percentage change = [(135 - 845) / 845] x 100
Subtract the new number by the original number
135 - 845 = -710
-710 ÷ 845 = -0.8402366863905325
-0.8402366863905325 x 100 = -84.02%