-57.32% is the change from 724 to 309
Calculation steps:
[( 309 - 724 ) ÷ 724] x 100 = -57.32%
Formula
Percentage change = [(309 - 724) / 724] x 100
Subtract the new number by the original number
309 - 724 = -415
-415 ÷ 724 = -0.5732044198895028
-0.5732044198895028 x 100 = -57.32%