-50.53% is the change from 657 to 325
Calculation steps:
[( 325 - 657 ) ÷ 657] x 100 = -50.53%
Formula
Percentage change = [(325 - 657) / 657] x 100
Subtract the new number by the original number
325 - 657 = -332
-332 ÷ 657 = -0.5053272450532724
-0.5053272450532724 x 100 = -50.53%