46.4% is the change from 278 to 407
Calculation steps:
[( 407 - 278 ) ÷ 278] x 100 = 46.4%
Formula
Percentage change = [(407 - 278) / 278] x 100
Subtract the new number by the original number
407 - 278 = 129
129 ÷ 278 = 0.46402877697841727
0.46402877697841727 x 100 = 46.4%