318.75% is the change from 128 to 536
Calculation steps:
[( 536 - 128 ) ÷ 128] x 100 = 318.75%
Formula
Percentage change = [(536 - 128) / 128] x 100
Subtract the new number by the original number
536 - 128 = 408
408 ÷ 128 = 3.1875
3.1875 x 100 = 318.75%