19.83% is the change from 121 to 145
Calculation steps:
[( 145 - 121 ) ÷ 121] x 100 = 19.83%
Formula
Percentage change = [(145 - 121) / 121] x 100
Subtract the new number by the original number
145 - 121 = 24
24 ÷ 121 = 0.19834710743801653
0.19834710743801653 x 100 = 19.83%