-98.54% is the change from 687 to 10
Calculation steps:
[( 10 - 687 ) ÷ 687] x 100 = -98.54%
Formula
Percentage change = [(10 - 687) / 687] x 100
Subtract the new number by the original number
10 - 687 = -677
-677 ÷ 687 = -0.9854439592430859
-0.9854439592430859 x 100 = -98.54%