-90.14% is the change from 852 to 84
Calculation steps:
[( 84 - 852 ) ÷ 852] x 100 = -90.14%
Formula
Percentage change = [(84 - 852) / 852] x 100
Subtract the new number by the original number
84 - 852 = -768
-768 ÷ 852 = -0.9014084507042254
-0.9014084507042254 x 100 = -90.14%