-98.54% is the change from 684 to 10
Calculation steps:
[( 10 - 684 ) ÷ 684] x 100 = -98.54%
Formula
Percentage change = [(10 - 684) / 684] x 100
Subtract the new number by the original number
10 - 684 = -674
-674 ÷ 684 = -0.9853801169590644
-0.9853801169590644 x 100 = -98.54%