I have taken over management of a WordPress site that uses Shopperpress. Currently the tax is set to 20% but it is charging more or less than 20%. An example is when items are added to the cart and equal a value of 149lbs and the shipping is 4.75lbs the tax is then calculated to be 29.80lbs for a total of 183.55lbs. In actuality the tax should be 30.75 for a total of $184.50
Another issue we are having is that when the remove item from cart is pushed the item isn't actually removed from the cart. It disappears for a moment and then reappears if by magic.
Any help on this would be appreciated. The site in question is http://www.aquaduct.co