-53.03% is the change from 909 to 427
Calculation steps:
[( 427 - 909 ) ÷ 909] x 100 = -53.03%
Formula
Percentage change = [(427 - 909) / 909] x 100
Subtract the new number by the original number
427 - 909 = -482
-482 ÷ 909 = -0.5302530253025303
-0.5302530253025303 x 100 = -53.03%