-57.28% is the change from 721 to 308
Calculation steps:
[( 308 - 721 ) ÷ 721] x 100 = -57.28%
Formula
Percentage change = [(308 - 721) / 721] x 100
Subtract the new number by the original number
308 - 721 = -413
-413 ÷ 721 = -0.5728155339805825
-0.5728155339805825 x 100 = -57.28%