It very much depends on the tax rate.
You need to know what percent of tax there is
12.72
It is 7.012.52 tax on an item costing 4.49 is a lot of tax!
That's going to depend on the tax rate on that specific item in your city, county, and state.
The Florida sales tax is currently 6% 16.98 x 1.06 = 18.00