-87.52% is the change from 689 to 86
Calculation steps:
[( 86 - 689 ) ÷ 689] x 100 = -87.52%
Formula
Percentage change = [(86 - 689) / 689] x 100
Subtract the new number by the original number
86 - 689 = -603
-603 ÷ 689 = -0.8751814223512336
-0.8751814223512336 x 100 = -87.52%