-83.94% is the change from 965 to 155
Calculation steps:
[( 155 - 965 ) ÷ 965] x 100 = -83.94%
Formula
Percentage change = [(155 - 965) / 965] x 100
Subtract the new number by the original number
155 - 965 = -810
-810 ÷ 965 = -0.8393782383419689
-0.8393782383419689 x 100 = -83.94%