-45.43% is the change from 909 to 496
Calculation steps:
[( 496 - 909 ) ÷ 909] x 100 = -45.43%
Formula
Percentage change = [(496 - 909) / 909] x 100
Subtract the new number by the original number
496 - 909 = -413
-413 ÷ 909 = -0.45434543454345433
-0.45434543454345433 x 100 = -45.43%