135.16% is the change from 256 to 602
Calculation steps:
[( 602 - 256 ) ÷ 256] x 100 = 135.16%
Formula
Percentage change = [(602 - 256) / 256] x 100
Subtract the new number by the original number
602 - 256 = 346
346 ÷ 256 = 1.3515625
1.3515625 x 100 = 135.16%