Robert's acct p $98.50 has been delinquent for three months. Office procedures charge a 2% service charge after 90 days componded monthly and is added to future bills. What will be the amount owed after nine months? I did $98.50 x 2% = $1.97 $1.97 x 6months = $11.82 $98.50+ $11.82 = $110.32. Check my math. Please give breakdown out of school 40 yrs Thanks