A console application is sufficient. No UI should be required other than (optionally) a button to produce the transaction output.
Basic sales tax is applicable at a rate of 10% on all goods, except books, food, and exempt medical products. Import duty is an additional sales tax applicable on all imported goods at a rate of 5%, with no exemptions.
When items are purchased, a receipt is provided listing all product names and total prices (including tax), finishing with the total cost of the items, and the total amount of sales taxes paid. The rounding rules for sales tax are that for a tax rate of n%, a shelf price of p contains (np/100 rounded up to the nearest 0.05) amount of sales tax. Write an application that prints out the receipt details for these shopping baskets.
1 book at 12.49
1 music CD at 14.99
1 chocolate bar at 0.85
1 imported box of chocolates at 10.00
1 imported bottle of perfume at 47.50
1 imported bottle of perfume at 27.99
1 bottle of perfume at 18.99
1 packet of headache pills at 9.75
1 box of imported chocolates at 11.25
1 book: 12.49
1 music CD: 16.49
1 chocolate bar: 0.85
Sales Taxes: 1.50
1 imported box of chocolates: 10.50
1 imported bottle of perfume: 54.65
Sales Taxes: 7.65
1 imported bottle of perfume: 32.19
1 bottle of perfume: 20.89
1 packet of headache pills: 9.75
1 imported box of chocolates: 11.85
Sales Taxes: 6.70