-44.66% is the change from 721 to 399
Calculation steps:
[( 399 - 721 ) ÷ 721] x 100 = -44.66%
Formula
Percentage change = [(399 - 721) / 721] x 100
Subtract the new number by the original number
399 - 721 = -322
-322 ÷ 721 = -0.44660194174757284
-0.44660194174757284 x 100 = -44.66%