-84.06% is the change from 684 to 109
Calculation steps:
[( 109 - 684 ) ÷ 684] x 100 = -84.06%
Formula
Percentage change = [(109 - 684) / 684] x 100
Subtract the new number by the original number
109 - 684 = -575
-575 ÷ 684 = -0.8406432748538012
-0.8406432748538012 x 100 = -84.06%