27.27% is the change from 121 to 154
Calculation steps:
[( 154 - 121 ) ÷ 121] x 100 = 27.27%
Formula
Percentage change = [(154 - 121) / 121] x 100
Subtract the new number by the original number
154 - 121 = 33
33 ÷ 121 = 0.2727272727272727
0.2727272727272727 x 100 = 27.27%