77.38% is the change from 451 to 800
Calculation steps:
[( 800 - 451 ) ÷ 451] x 100 = 77.38%
Formula
Percentage change = [(800 - 451) / 451] x 100
Subtract the new number by the original number
800 - 451 = 349
349 ÷ 451 = 0.7738359201773836
0.7738359201773836 x 100 = 77.38%