A cable company spends on average $600 to acquire a customer. Annual mainenance costs per customer - $45; record-keeping and billing costs - $30 per...

A cable company spends on average $600 to acquire a customer. Annual mainenance costs per customer - $45; record-keeping and billing costs - $30 per customer per annum.

Price of the basic service package - $30 per month. Typically, 40 percent of customers buy a prei