-10.65% is the change from 479 to 428
Calculation steps:
[( 428 - 479 ) ÷ 479] x 100 = -10.65%
Formula
Percentage change = [(428 - 479) / 479] x 100
Subtract the new number by the original number
428 - 479 = -51
-51 ÷ 479 = -0.10647181628392484
-0.10647181628392484 x 100 = -10.65%