82.61% is the change from 23 to 42
Calculation steps:
[( 42 - 23 ) ÷ 23] x 100 = 82.61%
Formula
Percentage change = [(42 - 23) / 23] x 100
Subtract the new number by the original number
42 - 23 = 19
19 ÷ 23 = 0.8260869565217391
0.8260869565217391 x 100 = 82.61%