49.12% is the change from 454 to 677
Calculation steps:
[( 677 - 454 ) ÷ 454] x 100 = 49.12%
Formula
Percentage change = [(677 - 454) / 454] x 100
Subtract the new number by the original number
677 - 454 = 223
223 ÷ 454 = 0.4911894273127753
0.4911894273127753 x 100 = 49.12%