12.28% is the change from 464 to 521
Calculation steps:
[( 521 - 464 ) ÷ 464] x 100 = 12.28%
Formula
Percentage change = [(521 - 464) / 464] x 100
Subtract the new number by the original number
521 - 464 = 57
57 ÷ 464 = 0.12284482758620689
0.12284482758620689 x 100 = 12.28%