The table in correct format is attached below.
Total number of runners = n = 724 + 103 = 827
Number of Runners who do not bike = x = 103
Percentage of runners who do not bike = [tex] \frac{x}{n} [/tex] x 100%
[tex]= \frac{103}{827} [/tex] x 100%
= 12.5%
Thus, 12.5% of Runners do not ride bike for exercise