69.82% is the change from 454 to 771
Calculation steps:
[( 771 - 454 ) ÷ 454] x 100 = 69.82%
Formula
Percentage change = [(771 - 454) / 454] x 100
Subtract the new number by the original number
771 - 454 = 317
317 ÷ 454 = 0.698237885462555
0.698237885462555 x 100 = 69.82%