69.57% is the change from 23 to 39
Calculation steps:
[( 39 - 23 ) ÷ 23] x 100 = 69.57%
Formula
Percentage change = [(39 - 23) / 23] x 100
Subtract the new number by the original number
39 - 23 = 16
16 ÷ 23 = 0.6956521739130435
0.6956521739130435 x 100 = 69.57%