48.73% is the change from 275 to 409
Calculation steps:
[( 409 - 275 ) ÷ 275] x 100 = 48.73%
Formula
Percentage change = [(409 - 275) / 275] x 100
Subtract the new number by the original number
409 - 275 = 134
134 ÷ 275 = 0.48727272727272725
0.48727272727272725 x 100 = 48.73%