19.01% is the change from 121 to 144
Calculation steps:
[( 144 - 121 ) ÷ 121] x 100 = 19.01%
Formula
Percentage change = [(144 - 121) / 121] x 100
Subtract the new number by the original number
144 - 121 = 23
23 ÷ 121 = 0.19008264462809918
0.19008264462809918 x 100 = 19.01%