The percentage of adult height attained by girls who are 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 this function to determine approximately what percent of her
adult height girls are at age 7.
The approximate percent of her adult height is ___ %.

(Round to two decimal places)