Sales Tax Calculator help please


#1

95% of this code is completed. I just need help getting the calculator to add up the sale total including taxes. I will post what I have below: I think I may have screwed up on my functions somewhere. The specs are:

The sales tax rate should be 6% of the total.
Your program should also contain functions that:
calculate the sales tax
calculate the total after tax
asks the user to enter a number repeatedly until they are done, adds each number to a total variable and uses a counter to determine how many numbers were entered.
outputs the total before tax, the tax and the total including tax.
These functions should round the results to a maximum of two decimal places.
Assume the user will enter valid data.

print(“Sales Tax Calculator”)
print()

Define variables

choice = "y"
while choice.lower() == “y”:

# Define functions

def sales_tax():
    print("Sales Tax: ")


def sales_total():
    print("Total after tax: ")


# ask prices for each item

print ("Enter the cost of each item (ENTER 0 TO END)")
item_1 = float(input("Cost of item_1:"))
if item_1 == 0:
    print (item_1)
    raise SystemExit

item_2 = float(input("Cost of item_2:"))
if item_2 == 0:
    print("Total:")
    total = round(item_1 + item_2, 2)
    print(total)
    sales_tax()
    tax = round(0.06 * total, 2)
    print(tax)
    sales_total()

    choice = input("Again(y/n)? ")
    if choice == "y":
        continue
    if choice == "n":
        print("Thanks, bye!")
        raise SystemExit

item_3 = float(input("Cost of item_3:"))
if item_3 == 0:
    print("Total:")
    total = round(item_1 + item_2 + item_3, 2)
    print(total)
    sales_tax()
    tax = round(0.06 * total, 2)
    print(tax)
    sales_total()
    print()
    choice = input("Again(y/n)? ")
    if choice == "y":
        continue
    if choice == "n":
        print("Thanks, bye!")
        raise SystemExit

item_4 = float(input("Cost of item_4:"))
if item_4 == 0:
    print("Total:")
    total = round(item_1 + item_2 + item_3 + item_4, 2)
    print(total)
    sales_tax()
    tax = round(0.06 * total, 2)
    print(tax)
    sales_total()
    print()
    choice = input("Again(y/n)? ")
    if choice == "y":
        continue
    if choice == "n":
        print("Thanks, bye!")
        raise SystemExit

#2

What if the user wants to add 100 items? You are going to write 100 functions? What about a thousand, you should really use a loop

just declare a variable total, add each item price to it:

total = 0
while True:
    # input user for price or exit
    # check user to exit, then break the loop
    # add item price to total

# after the loop, calculate the tax over total price.
# print to inform the user

to break out of the loop, use the break keyword, this way you can have code after your loop

if you want to display item 1, item 2 and so on when the user is entering data, just use a variable which you increase each iteration of the loop


#3

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