150.98% is the change from 102 to 256
Calculation steps:
[( 256 - 102 ) ÷ 102] x 100 = 150.98%
Formula
Percentage change = [(256 - 102) / 102] x 100
Subtract the new number by the original number
256 - 102 = 154
154 ÷ 102 = 1.5098039215686274
1.5098039215686274 x 100 = 150.98%