151.96% is the change from 102 to 257
Calculation steps:
[( 257 - 102 ) ÷ 102] x 100 = 151.96%
Formula
Percentage change = [(257 - 102) / 102] x 100
Subtract the new number by the original number
257 - 102 = 155
155 ÷ 102 = 1.5196078431372548
1.5196078431372548 x 100 = 151.96%