45.71% is the change from 280 to 408
Calculation steps:
[( 408 - 280 ) ÷ 280] x 100 = 45.71%
Formula
Percentage change = [(408 - 280) / 280] x 100
Subtract the new number by the original number
408 - 280 = 128
128 ÷ 280 = 0.45714285714285713
0.45714285714285713 x 100 = 45.71%