-85.22% is the change from 690 to 102
Calculation steps:
[( 102 - 690 ) ÷ 690] x 100 = -85.22%
Formula
Percentage change = [(102 - 690) / 690] x 100
Subtract the new number by the original number
102 - 690 = -588
-588 ÷ 690 = -0.8521739130434782
-0.8521739130434782 x 100 = -85.22%