$*$ VISUAL BASIC$*$ Write a program that will calculate the cost of donut orders for a fundraising event. The user is to be prompted $($using

textboxes$)$ to enter their name $($in lastName$[$comma$]$firstName format$),$ number of glazed donut boxes $(1$ dozen$),$ and

number of chocolate$-$covered donut boxes $(1$ dozen$).$ Both number of donut textboxes should contain $0$ initially.

Your program should display $($using a listbox$)$ the name, invoice number, glazed subtotal, chocolate$-$covered subtotal,

and total order cost. The subtotals and total should formatted to currency.

You should also display a label showing the total number of donuts sold to all customers. The total donuts should be

set as a class variable. The initial value for this should be $0.$ After successfully processing an order, the total donuts

sold for the customer $($boxes $*12)$ should be added to the total donuts class variable and the label updated.

Donut prices are set as follows:

$-$ Regular Glazed Box $(1$ dozen$)-$ $$6$

$-$ Chocolate Glazed Box $(1$ dozen$)-$ $$7$

For each order $($each time Calculate Cost is clicked$),$ an invoice number needs to be generated. The format of this

number is:

$-$ First two letters of the first name $($Upper Case$)$

$-$ First two letters of the last name $($Upper Case$)$

$-$ Hyphen $($dash$/$minus$)-$

$-$ Current order number

o $($Note: Order number should be set as a class variable. The initial value for the first order should be

$100.$ After successfully processing an order, the order number should be incremented by $1.)$

$-$ Hyphen $($dash$/$minus$)-$

$-$ Total number of boxes $($for this customer$)$

Your program should have three button events. These should perform the following tasks:

$-$ Calculate Cost $($perform the calculations and display the following output as shown below$)$:

$-$ Clear Form $($clear the name, reset glazed and choc textboxes to $0,$ clear the listbox, and set the focus to the

first textbox$).$

$-$ Exit $($end the program$).$

$*$note: the first order number is $100$ and increases by $1$ for each successful order. Order number should not

increase until order is calculated and output to the user