46.49% is the change from 456 to 668
Calculation steps:
[( 668 - 456 ) ÷ 456] x 100 = 46.49%
Formula
Percentage change = [(668 - 456) / 456] x 100
Subtract the new number by the original number
668 - 456 = 212
212 ÷ 456 = 0.4649122807017544
0.4649122807017544 x 100 = 46.49%