-43.15% is the change from 686 to 390
Calculation steps:
[( 390 - 686 ) ÷ 686] x 100 = -43.15%
Formula
Percentage change = [(390 - 686) / 686] x 100
Subtract the new number by the original number
390 - 686 = -296
-296 ÷ 686 = -0.4314868804664723
-0.4314868804664723 x 100 = -43.15%