-43.72% is the change from 709 to 399
Calculation steps:
[( 399 - 709 ) ÷ 709] x 100 = -43.72%
Formula
Percentage change = [(399 - 709) / 709] x 100
Subtract the new number by the original number
399 - 709 = -310
-310 ÷ 709 = -0.43723554301833567
-0.43723554301833567 x 100 = -43.72%