-53.68% is the change from 721 to 334
Calculation steps:
[( 334 - 721 ) ÷ 721] x 100 = -53.68%
Formula
Percentage change = [(334 - 721) / 721] x 100
Subtract the new number by the original number
334 - 721 = -387
-387 ÷ 721 = -0.536754507628294
-0.536754507628294 x 100 = -53.68%