50.88% is the change from 456 to 688
Calculation steps:
[( 688 - 456 ) ÷ 456] x 100 = 50.88%
Formula
Percentage change = [(688 - 456) / 456] x 100
Subtract the new number by the original number
688 - 456 = 232
232 ÷ 456 = 0.5087719298245614
0.5087719298245614 x 100 = 50.88%