55.15% is the change from 165 to 256
Calculation steps:
[( 256 - 165 ) ÷ 165] x 100 = 55.15%
Formula
Percentage change = [(256 - 165) / 165] x 100
Subtract the new number by the original number
256 - 165 = 91
91 ÷ 165 = 0.5515151515151515
0.5515151515151515 x 100 = 55.15%