66.3% is the change from 451 to 750
Calculation steps:
[( 750 - 451 ) ÷ 451] x 100 = 66.3%
Formula
Percentage change = [(750 - 451) / 451] x 100
Subtract the new number by the original number
750 - 451 = 299
299 ÷ 451 = 0.6629711751662971
0.6629711751662971 x 100 = 66.3%