71.62% is the change from 451 to 774
Calculation steps:
[( 774 - 451 ) ÷ 451] x 100 = 71.62%
Formula
Percentage change = [(774 - 451) / 451] x 100
Subtract the new number by the original number
774 - 451 = 323
323 ÷ 451 = 0.7161862527716186
0.7161862527716186 x 100 = 71.62%