-86.58% is the change from 663 to 89
Calculation steps:
[( 89 - 663 ) ÷ 663] x 100 = -86.58%
Formula
Percentage change = [(89 - 663) / 663] x 100
Subtract the new number by the original number
89 - 663 = -574
-574 ÷ 663 = -0.8657616892911011
-0.8657616892911011 x 100 = -86.58%