Enterprise Bank currently requires customers with checking accounts to maintain a minimum balance or pay a monthly fee. Enterprise plans to offer accounts with no monthly fee and no minimum-balance requirement; to cover their projected administrative costs of $3 per account per month they plan to charge $30 for overdrawing an account. Since each month on average slightly more than 10 percent of Enterprises customers overdraw their accounts, bank officials predict the new accounts will generate a profit. Which of the following, if true, most strongly supports the bank officials prediction?
【选项】One third of Enterprise Banks revenues are currently derived from monthly fees tied to checking accounts.