How do i set tax rates and default currency rates?

[dchizu]

each time i place a test order on the website i find out that what i get as total on my backend is only a fraction of what is ordered,for example if 3 items were ordered e.g item a #1255, item b #534 and item c #3214, i discovereed that the total cost was item a #1, item b#534 and item c #3 i.e the first digit of the original price is only counted and that gave a wrong total and it doesnt do that for all items. please how do i rectify this?

[abantecart]

Can you PM access to you admin? If you can not, please post the screenshots