66.23% is the change from 154 to 256
Calculation steps:
[( 256 - 154 ) ÷ 154] x 100 = 66.23%
Formula
Percentage change = [(256 - 154) / 154] x 100
Subtract the new number by the original number
256 - 154 = 102
102 ÷ 154 = 0.6623376623376623
0.6623376623376623 x 100 = 66.23%