12.47% is the change from 401 to 451
Calculation steps:
[( 451 - 401 ) ÷ 401] x 100 = 12.47%
Formula
Percentage change = [(451 - 401) / 401] x 100
Subtract the new number by the original number
451 - 401 = 50
50 ÷ 401 = 0.12468827930174564
0.12468827930174564 x 100 = 12.47%