343.48% is the change from 23 to 102
Calculation steps:
[( 102 - 23 ) ÷ 23] x 100 = 343.48%
Formula
Percentage change = [(102 - 23) / 23] x 100
Subtract the new number by the original number
102 - 23 = 79
79 ÷ 23 = 3.4347826086956523
3.4347826086956523 x 100 = 343.48%