-20.41% is the change from 686 to 546
Calculation steps:
[( 546 - 686 ) ÷ 686] x 100 = -20.41%
Formula
Percentage change = [(546 - 686) / 686] x 100
Subtract the new number by the original number
546 - 686 = -140
-140 ÷ 686 = -0.20408163265306123
-0.20408163265306123 x 100 = -20.41%