230.47% is the change from 128 to 423
Calculation steps:
[( 423 - 128 ) ÷ 128] x 100 = 230.47%
Formula
Percentage change = [(423 - 128) / 128] x 100
Subtract the new number by the original number
423 - 128 = 295
295 ÷ 128 = 2.3046875
2.3046875 x 100 = 230.47%