34.03% is the change from 191 to 256
Calculation steps:
[( 256 - 191 ) ÷ 191] x 100 = 34.03%
Formula
Percentage change = [(256 - 191) / 191] x 100
Subtract the new number by the original number
256 - 191 = 65
65 ÷ 191 = 0.3403141361256545
0.3403141361256545 x 100 = 34.03%