49.12% is the change from 456 to 680
Calculation steps:
[( 680 - 456 ) ÷ 456] x 100 = 49.12%
Formula
Percentage change = [(680 - 456) / 456] x 100
Subtract the new number by the original number
680 - 456 = 224
224 ÷ 456 = 0.49122807017543857
0.49122807017543857 x 100 = 49.12%