33.2% is the change from 256 to 341
Calculation steps:
[( 341 - 256 ) ÷ 256] x 100 = 33.2%
Formula
Percentage change = [(341 - 256) / 256] x 100
Subtract the new number by the original number
341 - 256 = 85
85 ÷ 256 = 0.33203125
0.33203125 x 100 = 33.2%