TypeError: can't multiply sequence by non-int of type 'str'

[Beatenberg]

When I add int to both cost[0] * cost[1], the code repeats itself and never multiplies them. Why is this happening?

def Pass_Calculate(cost):
    return int(cost[0]) * int(cost[1])

[sparkz_alot]

When does 'Pass_Total()' come into play?

[Beatenberg]

Pass_Total() comes into play after Pass_Discount()

 def Pass_Show():
    print("Aussie Pass!")
    print("Please select a package and discount depending on age.")
    print("E.g. Package = 7")
    Pass_Package()

def Pass_Package():
    print("7 Day Pass – $139.95")
    print("14 Day Pass - $239.95")
    print("30 Day Pass - $500.00")
    Pass_Discount()

def Pass_Discount():
    print("Children (Under 15) - 60% off")
    print("Students (Over 15 & less than 22) - 40% off")
    print("Seniors (60 or over) - 50% off")
    Pass_Total()

def Pass_Total():
    cost = Pass_Cost()
    total = Pass_Calculate(cost)
    print("The total cost is: $" + str(total))

def Pass_Cost():#User inputs the type of package they suit and discount
    cost=list()
    package = input('Package: ')
    if package == '7' or '14' or '30': #If they enter those values they will move onto choosing their discount
        print("Proceed...")
        cost.append(package)
        
    if package not in('7','14','30'):
        Pass_Cost()#If they do not enter any of those values they will be prompted to ask again 
    
    p = int(package)


    discount = input("Discount: ")     
    if discount == "Children":
        discount = 0.60
        cost.append(discount)
        Pass_Calculate(cost)
    if discount == "Students":
        discount = 0.50
        cost.append(discount)
        Pass_Calculate(cost)
    if discount == "Seniors":
        discount = 0.40
        cost.append(discount)
        Pass_Calculate(cost)
    if discount not in ("Children","Students","Seniors"):
        Pass_Cost()

    d = int(discount)
    
    return p, d
    
    
def Pass_Calculate(cost):
    return float(int(cost[0])) * float(int(cost[1])) #Calculates the cost from their chosen package and discount e.g. 7 * 0.6
                    #7 being the chosen package (7 Day Pass) and 0.6 being the Children discount (60%)




Pass_Show()