Print database list using POS (TMT88V Epson printer) — as well as adjust basic designs.

I imagine that you're reading lots of projects, so I'll keep this short and sweet. I need someone to extend the functionality for my current Windows 7 Point-of-sale (POS) application. My current POS system has built-in calculations for certain fees and taxes my business is obligated to pay, but I cannot change the taxes and fees which operate these calculations. As these fees are subject to change this missing feature has caused an inconvenience for my business in the recent past. I wish to have the ability to change these fees either via a text file. PLEASE NOTE: I've done one other project before this and one big problem I encountered was that freelancers would continue to spam me long after I had already hired a programmer for my project. Once I accept a freelancer for this project my decision is final, please don't continue to message me. Rather than message me afterwards, please leave a bid on this project instead letting me know you exist, and your qualifications. If I feel that I need to change freelancers for any reason, then I will come you to myself. If you spam me in my messages, I will most certainly not hire you. - Thank you