-52.21% is the change from 680 to 325
Calculation steps:
[( 325 - 680 ) ÷ 680] x 100 = -52.21%
Formula
Percentage change = [(325 - 680) / 680] x 100
Subtract the new number by the original number
325 - 680 = -355
-355 ÷ 680 = -0.5220588235294118
-0.5220588235294118 x 100 = -52.21%