-60.2% is the change from 686 to 273
Calculation steps:
[( 273 - 686 ) ÷ 686] x 100 = -60.2%
Formula
Percentage change = [(273 - 686) / 686] x 100
Subtract the new number by the original number
273 - 686 = -413
-413 ÷ 686 = -0.6020408163265306
-0.6020408163265306 x 100 = -60.2%