## Total cost for metal processing

The code I provided is an HTML form that allows you to calculate the cost of an object made of steel. The user can select the type of steel, enter the weight of the object in kilograms, the number of labor hours, the hourly labor rate, and the overhead as a percentage. The form then calculates the total cost of the object and displays it in a table.

The function “calculateCost()” performs the calculations using the following formula:

`total cost = (kg * steel price) + (hours of labor * hourly rate) + [(kg * steel price) + (hours of labor * hourly rate)] * (overhead / 100)`

This formula calculates the total cost of the object based on the weight of the steel, the cost of the labor, and the overhead percentage entered by the user.

Here is a practical example: Let’s say you want to calculate the cost of an object made of mild steel that weighs 10 kg, took 5 hours of labor to create, with an hourly rate of $20, and an overhead of 10%. Using the form, you would select “Mild Steel” from the dropdown menu, enter “10” in the “Kg” field, “5” in the “Hours of Labor” field, “20” in the “Hourly Rate” field, and “10” in the “Overhead (%)” field. When you click the “Calculate” button, the form would display a table with the total cost of the object, which would be $337.50.

I hope this explanation and practical example helps you understand how the code works. If you have any further questions or concerns, please let me know.