-53.91% is the change from 909 to 419
Calculation steps:
[( 419 - 909 ) ÷ 909] x 100 = -53.91%
Formula
Percentage change = [(419 - 909) / 909] x 100
Subtract the new number by the original number
419 - 909 = -490
-490 ÷ 909 = -0.5390539053905391
-0.5390539053905391 x 100 = -53.91%