-55.8% is the change from 724 to 320
Calculation steps:
[( 320 - 724 ) ÷ 724] x 100 = -55.8%
Formula
Percentage change = [(320 - 724) / 724] x 100
Subtract the new number by the original number
320 - 724 = -404
-404 ÷ 724 = -0.5580110497237569
-0.5580110497237569 x 100 = -55.8%
Example