288.28% is the change from 128 to 497
Calculation steps:
[( 497 - 128 ) ÷ 128] x 100 = 288.28%
Formula
Percentage change = [(497 - 128) / 128] x 100
Subtract the new number by the original number
497 - 128 = 369
369 ÷ 128 = 2.8828125
2.8828125 x 100 = 288.28%