Assume you are considering the consolidation of all your electronic services with one company. By purchasing a digital phone from AT&T wireless, you can buy wireless e-mail and fax services for $6.99 per month. For $14.99 per month, you will get unlimited web access and personal organization functions. For a 2-year contract period, what is the future worth of the difference between the services at an interest rate of 12% per year, compounded monthly?