58.39% is the change from 161 to 255
Calculation steps:
[( 255 - 161 ) ÷ 161] x 100 = 58.39%
Formula
Percentage change = [(255 - 161) / 161] x 100
Subtract the new number by the original number
255 - 161 = 94
94 ÷ 161 = 0.5838509316770186
0.5838509316770186 x 100 = 58.39%