12.5% is the change from 456 to 513
Calculation steps:
[( 513 - 456 ) ÷ 456] x 100 = 12.5%
Formula
Percentage change = [(513 - 456) / 456] x 100
Subtract the new number by the original number
513 - 456 = 57
57 ÷ 456 = 0.125
0.125 x 100 = 12.5%
Example