Activity: Cash Register $(40$ points$)$

A local retail store in Fayetteville gives a first$-$time customer a $10\%$ discount of total purchase and a first$-$

time customer who is also local a $15\%$ discount. The retail store has $5$ categories of merchandise,

labelled Category $1,$ Category $2,$ Category $3,$ Category $4$ and Category $5.$ Category $1$ had $3$ items labelled

Item $1,$ Item $2$ and Item $3$; Category $2$ has $4$ items labelled Item$1-4$; Category $3$ has $2$ items labelled

Item$1-2$ and Category $4$ has $5$ items labelled Item$1-5$ and Category $5$ has $4$ items labelled Item$1-4.$ The

prices of the items are as follow:

Category $1$: $$12\mathrm{.}95,$ $$10\mathrm{.}99,$ $$25\mathrm{.}59$

Category $2$: $$11\mathrm{.}95,$ $$12\mathrm{.}95,$ $$45,15,$ $$25\mathrm{.}99$

Category $3$: $$35\mathrm{.}95,$ $$30\mathrm{.}85$

Category $4$: $$89\mathrm{.}99,$ $$15\mathrm{.}99,$ $$23\mathrm{.}89,$ $$70\mathrm{.}15,$ $$30\mathrm{.}85$

Category $5$: $$17\mathrm{.}96,$ $$27\mathrm{.}15,$ $$10\mathrm{.}89,$ $$8\mathrm{.}95$

Design and develop a GUI program that will have the following:

$1.$ Radiobutton for discount

$2.$ Checkbutton for each Category

$3.$ Check Out button that will calculate the sale and causes the Entry$/$Label widget in $(7)$ to display

summary. The tax should be calculated using $7\mathrm{.}25\%.$ Use $2$ decima places for all numeric display.

$4.$ Reset button that will refresh the screen.

$5.$ Quit button to exit the window.

$6.$ A title Label widget.

$7.$ Entry$/$Label widget to display the summary of purchase.

I have provided a program that you could start with. You need to include your own code as you deem fit.

The summary display on a label widget should look like:

Total merchandise $$115\mathrm{.}94$

Discount $ $17\mathrm{.}39$

$7\mathrm{.}25\%$ Tax $ $9\mathrm{.}67$

Total $$142\mathrm{.}90$