14.25% is the change from 456 to 521
Calculation steps:
[( 521 - 456 ) ÷ 456] x 100 = 14.25%
Formula
Percentage change = [(521 - 456) / 456] x 100
Subtract the new number by the original number
521 - 456 = 65
65 ÷ 456 = 0.1425438596491228
0.1425438596491228 x 100 = 14.25%
Example