77.75% is the change from 454 to 807
Calculation steps:
[( 807 - 454 ) ÷ 454] x 100 = 77.75%
Formula
Percentage change = [(807 - 454) / 454] x 100
Subtract the new number by the original number
807 - 454 = 353
353 ÷ 454 = 0.7775330396475771
0.7775330396475771 x 100 = 77.75%