121.74% is the change from 23 to 51
Calculation steps:
[( 51 - 23 ) ÷ 23] x 100 = 121.74%
Formula
Percentage change = [(51 - 23) / 23] x 100
Subtract the new number by the original number
51 - 23 = 28
28 ÷ 23 = 1.2173913043478262
1.2173913043478262 x 100 = 121.74%