-86.95% is the change from 659 to 86
Calculation steps:
[( 86 - 659 ) ÷ 659] x 100 = -86.95%
Formula
Percentage change = [(86 - 659) / 659] x 100
Subtract the new number by the original number
86 - 659 = -573
-573 ÷ 659 = -0.8694992412746586
-0.8694992412746586 x 100 = -86.95%