-87.93% is the change from 845 to 102
Calculation steps:
[( 102 - 845 ) ÷ 845] x 100 = -87.93%
Formula
Percentage change = [(102 - 845) / 845] x 100
Subtract the new number by the original number
102 - 845 = -743
-743 ÷ 845 = -0.8792899408284024
-0.8792899408284024 x 100 = -87.93%