lan Shields Communications, Inc., a cellular communications provider based in Michigan, has determined that its average CLV per customer is $$1,380.$ Last year, the company obtained $58,200$ new customers while spending $$3\mathrm{.}34$ million on advertising and promotion. In terms of personnel and operational costs, they spent $$5\mathrm{.}07$ million on their sales force and the total cost of their retail stores was $$16\mathrm{.}10$ million, of which approximately $75\%$ supported service and operations and the remainder was deemed for marketing and sales. Finally, corporate overhead was $$4\mathrm{.}03$ million.