Write a procedure called mass_production_order() that receives as input, 2 parameters, price and number. The first represents an item's production cost price and the second the number of items ordered on a single order.

The procedure should calculate and print the total cost price for the complete order. However, as it is mass-produced the following calculation rules apply:

• For the first 40 items ordered the items production cost is the basic cost per item.
• For each item over 40 hours made and up to 50 items made, the item costs 20% less than the basic cost per item.
• For each item above 50 hours made, the item costs 40% less than the basic cost per item.
• Orders above 80 items are not be allowed and an error message should display (as per the given example)
• The answer of every calculation should be rounded to 2 decimal places.

The text for the prints is available in the test cases. Do not call the procedure, it will be called by the test program.