-87.01% is the change from 685 to 89
Calculation steps:
[( 89 - 685 ) ÷ 685] x 100 = -87.01%
Formula
Percentage change = [(89 - 685) / 685] x 100
Subtract the new number by the original number
89 - 685 = -596
-596 ÷ 685 = -0.8700729927007299
-0.8700729927007299 x 100 = -87.01%