-90.85% is the change from 852 to 78
Calculation steps:
[( 78 - 852 ) ÷ 852] x 100 = -90.85%
Formula
Percentage change = [(78 - 852) / 852] x 100
Subtract the new number by the original number
78 - 852 = -774
-774 ÷ 852 = -0.9084507042253521
-0.9084507042253521 x 100 = -90.85%