23.08% is the change from 13 to 16
Calculation steps:
[( 16 - 13 ) ÷ 13] x 100 = 23.08%
Formula
Percentage change = [(16 - 13) / 13] x 100
Subtract the new number by the original number
16 - 13 = 3
3 ÷ 13 = 0.23076923076923078
0.23076923076923078 x 100 = 23.08%