http://stevesleepergroup.com Bank Profitability. 20 year bank marketing consultant Steve Sleeper discusses bank profitability. 30%-50% of consumer checking relationships don't contribute enough revenue to break-even. Sleeper reps a company that can ascertain which accounts are profitable and not profitable. We show banks how to afford to keep the unprofitable relationships by improving the financial contribution. We protect profitable customers by providing them with the best checking account that's available. Bank Profitability