342.19% is the change from 128 to 566
Calculation steps:
[( 566 - 128 ) ÷ 128] x 100 = 342.19%
Formula
Percentage change = [(566 - 128) / 128] x 100
Subtract the new number by the original number
566 - 128 = 438
438 ÷ 128 = 3.421875
3.421875 x 100 = 342.19%