-74.71% is the change from 684 to 173
Calculation steps:
[( 173 - 684 ) ÷ 684] x 100 = -74.71%
Formula
Percentage change = [(173 - 684) / 684] x 100
Subtract the new number by the original number
173 - 684 = -511
-511 ÷ 684 = -0.7470760233918129
-0.7470760233918129 x 100 = -74.71%