-30.11% is the change from 724 to 506
Calculation steps:
[( 506 - 724 ) ÷ 724] x 100 = -30.11%
Formula
Percentage change = [(506 - 724) / 724] x 100
Subtract the new number by the original number
506 - 724 = -218
-218 ÷ 724 = -0.3011049723756906
-0.3011049723756906 x 100 = -30.11%