349.54% is the change from 109 to 490
Calculation steps:
[( 490 - 109 ) ÷ 109] x 100 = 349.54%
Formula
Percentage change = [(490 - 109) / 109] x 100
Subtract the new number by the original number
490 - 109 = 381
381 ÷ 109 = 3.4954128440366974
3.4954128440366974 x 100 = 349.54%