50.11% is the change from 451 to 677
Calculation steps:
[( 677 - 451 ) ÷ 451] x 100 = 50.11%
Formula
Percentage change = [(677 - 451) / 451] x 100
Subtract the new number by the original number
677 - 451 = 226
226 ÷ 451 = 0.5011086474501109
0.5011086474501109 x 100 = 50.11%