-56.44% is the change from 916 to 399
Calculation steps:
[( 399 - 916 ) ÷ 916] x 100 = -56.44%
Formula
Percentage change = [(399 - 916) / 916] x 100
Subtract the new number by the original number
399 - 916 = -517
-517 ÷ 916 = -0.5644104803493449
-0.5644104803493449 x 100 = -56.44%