272.48% is the change from 109 to 406
Calculation steps:
[( 406 - 109 ) ÷ 109] x 100 = 272.48%
Formula
Percentage change = [(406 - 109) / 109] x 100
Subtract the new number by the original number
406 - 109 = 297
297 ÷ 109 = 2.7247706422018347
2.7247706422018347 x 100 = 272.48%