The percentage of adult height attained by a girl who is $x$ years old can be modeled by $$f(x)=62+35 \log (x-4),$$ where $x$ represents the girl's age (from 5 to 15 ) and $f(x)$ represents the percentage of her adult height. Use the formula to solve Exercises. Round answers to the nearest tenth of a percent.
Approximately what percentage of her adult height has a girl attained at age $13 ?$