-75.51% is the change from 686 to 168
Calculation steps:
[( 168 - 686 ) ÷ 686] x 100 = -75.51%
Formula
Percentage change = [(168 - 686) / 686] x 100
Subtract the new number by the original number
168 - 686 = -518
-518 ÷ 686 = -0.7551020408163265
-0.7551020408163265 x 100 = -75.51%