seems like the difference in price is 7%, is that Tax in the U.S. or something?
Some states have no state income tax, but charge sales tax. Other states have no sales tax, but charge a state income tax instead.
and states that do have sales tax have variations all over the place depending on where the company is located, since counties and cities can levy their own sales tax on top of the state sales tax.
It's 8.3% where I live, but different two towns over.