8.77% is the change from 479 to 521
Calculation steps:
[( 521 - 479 ) ÷ 479] x 100 = 8.77%
Formula
Percentage change = [(521 - 479) / 479] x 100
Subtract the new number by the original number
521 - 479 = 42
42 ÷ 479 = 0.08768267223382047
0.08768267223382047 x 100 = 8.77%