hi, i have an assignment it says " Create a program for a restaurant owner to keep track of customer bills as wells as daily sales. For each customer, the waiters/ waitresses have entered all items for the customers, the program should calculate the subtotal, PST (8%), GST (7%), total, and sugessested tip (15% of the subtotal). There is no PST charged for any subtotals less than $4. A 5% discount is offered for any subtotal more than $50 and a 10% discount for any subtotal more than $100. Your do not need to display discounts of zero. The program should continue for each customer. At the end of the day the program should provide the user with the daily totals for sales, taxes, discounts, and profits for the day." talk about a huge assignment this is what i have so far :
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% -----------------------------
%
% ------------------------------
var movesales, continue, moresales : string
var quantity1, quantity2, quantity3, discount5 : int
var price1, price2, price3, subtotal, totaltotal, totalquantity1, totalquantity2, totalquantity3,quantity4,quantity5,quantity6 : real
var price4, price5, price6, totalquantity4,totalquantity5,totalquantity6,subtotal1,totaltotal2, pst1, pst2, tip2, grandtotal :real
var subtotal2 :real
loop
const pst:= .08
const gst:= .07
const tip:= 0.15
subtotal := 0
discount5 := 0
put " Restaurant Program"
put " ---------------------"
put ""
put " Enter The Quantity For Item ( 0 To Quit ): " ..
get quantity1
put ""
if quantity1 > 0 then
put " Enter The Price For The Item: " ..
get price1
end if
totalquantity1 := price1 * quantity1
put ""
put " Enter The Quantity For Item ( 0 To Quit ): " ..
get quantity2
put ""
if quantity2 > 0 then
put " Enter The Price For The Item: " ..
get price2
end if
totalquantity2 := price2 * quantity2
put ""
put " Enter The Quantity For Item ( 0 To Quit ): " ..
get quantity3
put ""
if quantity3 > 0 then
put " Enter The Price For The Item: " ..
get price3
totalquantity3 := price3 * quantity3
end if
cls
subtotal := totalquantity1 + totalquantity2 + totalquantity3
totaltotal := pst + gst + subtotal
put ""
put ""
put " Sub-Total: $", subtotal :0:2
put " 5% Discount: "
put " PST: ", " $", pst * subtotal : 0 : 2
put " GST: ", " $", gst * subtotal : 0 : 2
put " ------------------"
put ""
put " Total: ", " $", totaltotal
put " Tip: ", "$", totaltotal * tip :0:2
put ""
put " Press Any key To Continue" ..
get continue
cls
put " Are There More Sales? " ..
get moresales
exit when moresales = "n" or moresales = "NO" or moresales = "N" or moresales = "no"
end loop
cls
const tip1 := 0.15
const gst1:= .07
subtotal := 0
discount5 := 0
totalquantity6 := price6 * quantity6
end if
cls
subtotal1 := totalquantity4 + totalquantity5 + totalquantity6
totaltotal2 := pst1 + gst1 + subtotal2
loop
put ""
put ""
put " Sub-Total: $", subtotal2 :0:2
put " 5% Discount: "
put " PST: ", " $", pst1 * subtotal2 : 0 : 2
put " GST: ", " $", gst1 * subtotal2 : 0 : 2
put " ------------------"
put ""
put " Total: ", " $", totaltotal2
put " Tip: ", "$", totaltotal2 * tip2 :0:2
put ""
put " Press Any key To Continue" ..
get continue
cls
put " Are There More Sales? " ..
get moresales
exit when moresales = "n" or moresales = "NO" or moresales = "N" or moresales = "no"
end loop
put " Grand Totals For The Day"
put " ---------------------------"
put ""
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I am so confused
that I don't know what to do.. can someone please just correct the code 
.. i thank you in advance 
...
.. i thank you in advance 
8) 
verify code)