-56.88% is the change from 909 to 392
Calculation steps:
[( 392 - 909 ) ÷ 909] x 100 = -56.88%
Formula
Percentage change = [(392 - 909) / 909] x 100
Subtract the new number by the original number
392 - 909 = -517
-517 ÷ 909 = -0.5687568756875687
-0.5687568756875687 x 100 = -56.88%