-57.42% is the change from 721 to 307
Calculation steps:
[( 307 - 721 ) ÷ 721] x 100 = -57.42%
Formula
Percentage change = [(307 - 721) / 721] x 100
Subtract the new number by the original number
307 - 721 = -414
-414 ÷ 721 = -0.5742024965325936
-0.5742024965325936 x 100 = -57.42%