I am going to try and explain this as best I can and provide an image that I hope will help explain it as well. In each cell of my grid I have some custom html that actually has two different values in it. If you look at the image you will see 10 /10% in row 5. The second value is always static; it is set when the grid is loaded and cannot be changed by the user. However, the first value can be changed. Using the example above a user could type in 37 and you would see 37/10%. What I need help with is to sum all of those first values and display that total in another cell. In the image example, if I have two values on the same row 10/10% and 17/20%, in one column I would sum the first values (27) and in another column I would have the second value sum (30).