item_price=[1050,2200,8575,485,234,150,399]
def price_max(item_price):
    print("Price of Costliest item in the Retail store:",max(item_price))
def average_price(item_price):
    total_price=0
    for i in item_price:
        total_price+=i
    average_price=total_price/len(item_price) 
    print("Average Price of items in the Retail store:",average_price)
def display_sorted_price(item_price):
    item_price.sort()
    print("Item Price in Sorted List Order:",item_price)
        

price_max(item_price)
average_price(item_price)
display_sorted_price(item_price)