Rock Solid Bank and Trust (RSBST) offers only checking accounts. Customers can write checks and use a network of automated teller machines. RSB&T eams revenue by investing the money deposited cumenty ta erages 6.00 pe cent annualy on its investments of those deposits To compete with larger banks, RS ST pays depositors ? 40 percent on all deposts A re ent Sudy class red he banks an operating costs into four activities Cost D Using ATMM Visitng branch Processing transaction Managing functions S 1,540,000 2,200,000 uses 152.000 vists Number of visits 12,000 6,724.000 82,000,000 nsactions Total deposts Total overhead 15,336,000 Data on two representative customers follow Branch visits Number of transactions 50 $6.200 21 1 550 $6.200