65.81% is the change from 155 to 257
Calculation steps:
[( 257 - 155 ) ÷ 155] x 100 = 65.81%
Formula
Percentage change = [(257 - 155) / 155] x 100
Subtract the new number by the original number
257 - 155 = 102
102 ÷ 155 = 0.6580645161290323
0.6580645161290323 x 100 = 65.81%