-30.8% is the change from 724 to 501
Calculation steps:
[( 501 - 724 ) ÷ 724] x 100 = -30.8%
Formula
Percentage change = [(501 - 724) / 724] x 100
Subtract the new number by the original number
501 - 724 = -223
-223 ÷ 724 = -0.3080110497237569
-0.3080110497237569 x 100 = -30.8%