-20.7% is the change from 686 to 544
Calculation steps:
[( 544 - 686 ) ÷ 686] x 100 = -20.7%
Formula
Percentage change = [(544 - 686) / 686] x 100
Subtract the new number by the original number
544 - 686 = -142
-142 ÷ 686 = -0.20699708454810495
-0.20699708454810495 x 100 = -20.7%