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Kemple is a newly established janitorial firm, and the owner is deciding what type of checking account to open. Kemple is planning to keep a $500 minimum balance in the account for emergencies and plans to write roughly 80 checks per month. The bank charges $10 per month plus a $0.10 per check charge for a standard business checking account with no minimum balance. Kemple also has the option of a premium business checking account that requires a $2,500 minimum balance but has no monthly fees or per check charges. If Kemple’s cost of funds is 10%, which account should Kemple choose?