320.31% is the change from 128 to 538
Calculation steps:
[( 538 - 128 ) ÷ 128] x 100 = 320.31%
Formula
Percentage change = [(538 - 128) / 128] x 100
Subtract the new number by the original number
538 - 128 = 410
410 ÷ 128 = 3.203125
3.203125 x 100 = 320.31%