64.47% is the change from 456 to 750
Calculation steps:
[( 750 - 456 ) ÷ 456] x 100 = 64.47%
Formula
Percentage change = [(750 - 456) / 456] x 100
Subtract the new number by the original number
750 - 456 = 294
294 ÷ 456 = 0.6447368421052632
0.6447368421052632 x 100 = 64.47%