-97.36% is the change from 681 to 18
Calculation steps:
[( 18 - 681 ) ÷ 681] x 100 = -97.36%
Formula
Percentage change = [(18 - 681) / 681] x 100
Subtract the new number by the original number
18 - 681 = -663
-663 ÷ 681 = -0.973568281938326
-0.973568281938326 x 100 = -97.36%