-87.66% is the change from 697 to 86
Calculation steps:
[( 86 - 697 ) ÷ 697] x 100 = -87.66%
Formula
Percentage change = [(86 - 697) / 697] x 100
Subtract the new number by the original number
86 - 697 = -611
-611 ÷ 697 = -0.8766140602582496
-0.8766140602582496 x 100 = -87.66%