77.97% is the change from 454 to 808
Calculation steps:
[( 808 - 454 ) ÷ 454] x 100 = 77.97%
Formula
Percentage change = [(808 - 454) / 454] x 100
Subtract the new number by the original number
808 - 454 = 354
354 ÷ 454 = 0.7797356828193832
0.7797356828193832 x 100 = 77.97%