288.07% is the change from 109 to 423
Calculation steps:
[( 423 - 109 ) ÷ 109] x 100 = 288.07%
Formula
Percentage change = [(423 - 109) / 109] x 100
Subtract the new number by the original number
423 - 109 = 314
314 ÷ 109 = 2.8807339449541285
2.8807339449541285 x 100 = 288.07%