-87.15% is the change from 685 to 88
Calculation steps:
[( 88 - 685 ) ÷ 685] x 100 = -87.15%
Formula
Percentage change = [(88 - 685) / 685] x 100
Subtract the new number by the original number
88 - 685 = -597
-597 ÷ 685 = -0.8715328467153285
-0.8715328467153285 x 100 = -87.15%