10.56% is the change from 521 to 576
Calculation steps:
[( 576 - 521 ) ÷ 521] x 100 = 10.56%
Formula
Percentage change = [(576 - 521) / 521] x 100
Subtract the new number by the original number
576 - 521 = 55
55 ÷ 521 = 0.10556621880998081
0.10556621880998081 x 100 = 10.56%