Hi i designed a website which displays a table containing name of product and number of products i have stored for the user ,below the table i have created a form which has the product name and next to it there is an input field for the user to enter the number of products he wants delivered to him ,i was wondering how will it be possible for PHP to subtract the figure entered in the form from the figure displayed in the table on the page when a user clicks on the submit button. Please im pretty desparate