-88.08% is the change from 856 to 102
Calculation steps:
[( 102 - 856 ) ÷ 856] x 100 = -88.08%
Formula
Percentage change = [(102 - 856) / 856] x 100
Subtract the new number by the original number
102 - 856 = -754
-754 ÷ 856 = -0.8808411214953271
-0.8808411214953271 x 100 = -88.08%