-51.84% is the change from 681 to 328
Calculation steps:
[( 328 - 681 ) ÷ 681] x 100 = -51.84%
Formula
Percentage change = [(328 - 681) / 681] x 100
Subtract the new number by the original number
328 - 681 = -353
-353 ÷ 681 = -0.5183553597650514
-0.5183553597650514 x 100 = -51.84%