-42.46% is the change from 909 to 523
Calculation steps:
[( 523 - 909 ) ÷ 909] x 100 = -42.46%
Formula
Percentage change = [(523 - 909) / 909] x 100
Subtract the new number by the original number
523 - 909 = -386
-386 ÷ 909 = -0.42464246424642466
-0.42464246424642466 x 100 = -42.46%