-86.77% is the change from 650 to 86
Calculation steps:
[( 86 - 650 ) ÷ 650] x 100 = -86.77%
Formula
Percentage change = [(86 - 650) / 650] x 100
Subtract the new number by the original number
86 - 650 = -564
-564 ÷ 650 = -0.8676923076923077
-0.8676923076923077 x 100 = -86.77%