-20.47% is the change from 684 to 544
Calculation steps:
[( 544 - 684 ) ÷ 684] x 100 = -20.47%
Formula
Percentage change = [(544 - 684) / 684] x 100
Subtract the new number by the original number
544 - 684 = -140
-140 ÷ 684 = -0.2046783625730994
-0.2046783625730994 x 100 = -20.47%