17.48% is the change from 103 to 121
Calculation steps:
[( 121 - 103 ) ÷ 103] x 100 = 17.48%
Formula
Percentage change = [(121 - 103) / 103] x 100
Subtract the new number by the original number
121 - 103 = 18
18 ÷ 103 = 0.17475728155339806
0.17475728155339806 x 100 = 17.48%