-87.39% is the change from 690 to 87
Calculation steps:
[( 87 - 690 ) ÷ 690] x 100 = -87.39%
Formula
Percentage change = [(87 - 690) / 690] x 100
Subtract the new number by the original number
87 - 690 = -603
-603 ÷ 690 = -0.8739130434782608
-0.8739130434782608 x 100 = -87.39%