This package provides a simple math class that can calculate profit and loss.

It provides a class that can perform addition and subtraction of amount values.

The package comes with an example script that presents a form for the user to enter the cost price and selling prices, and then it tells the user if there was a profit or loss.

Another example script can calculate the cost prices if it is missing from the selling price and the profit and loss percentages or can calculate the selling price if it is missing from the cost prices and the profit and loss percentages.