9.45% is the change from 476 to 521
Calculation steps:
[( 521 - 476 ) ÷ 476] x 100 = 9.45%
Formula
Percentage change = [(521 - 476) / 476] x 100
Subtract the new number by the original number
521 - 476 = 45
45 ÷ 476 = 0.09453781512605042
0.09453781512605042 x 100 = 9.45%