288.99% is the change from 109 to 424
Calculation steps:
[( 424 - 109 ) ÷ 109] x 100 = 288.99%
Formula
Percentage change = [(424 - 109) / 109] x 100
Subtract the new number by the original number
424 - 109 = 315
315 ÷ 109 = 2.889908256880734
2.889908256880734 x 100 = 288.99%