A juice manufacturer advertises its apple drink as "natural" . Even though it contains only 5% apple juice . A new regulation stipulates that to use "natural" on the label , a drink must contain at least 10% fruit juice .
The minimum daily requirement of Vitamin C for teenages is 70 mg. If one ounce of pure apple juice contains 0.31 mg of Vitamin C , what percent of the daily requirement does a teenager get by drinking an 8-ounce cup of the apple drink that contains 10% pure apple juice ?