149.51% is the change from 103 to 257
Calculation steps:
[( 257 - 103 ) ÷ 103] x 100 = 149.51%
Formula
Percentage change = [(257 - 103) / 103] x 100
Subtract the new number by the original number
257 - 103 = 154
154 ÷ 103 = 1.4951456310679612
1.4951456310679612 x 100 = 149.51%