-54.9% is the change from 909 to 410
Calculation steps:
[( 410 - 909 ) ÷ 909] x 100 = -54.9%
Formula
Percentage change = [(410 - 909) / 909] x 100
Subtract the new number by the original number
410 - 909 = -499
-499 ÷ 909 = -0.5489548954895489
-0.5489548954895489 x 100 = -54.9%