Lucky​ Louie's bank requires a minimum balance at all times of​ $1500 in order to provide free checking services. The bank pays​ .5% per annum interest on the minimum balance. If you do not maintain the​ balance, account service fees are​ $4 per month. Assuming Lucky can earn​ 2.5% on his money not sitting at the​ bank, what is his net benefit to maintaining the minimum​ balance?

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