What percentage did someone suggest to use when trying to increase the photo size with minimum loss in quality. I remember that it was increased by a certain percentage but I can't remember if the increases were by 2% or 10 %.

Thanks

10%!!!!I see that you posted yesterday with no replies. Hope this helps.

Also remember to use bicubic smoother, and depending on how big your going, every 3rd time or so switch to bicubic sharper once.
Alien Skin Blowup works great too. I don't see a difference in quality but you can do it in one mouse click.

Thanks for the info.

Yeah its 10% and depending on what you want and how many times you're doing the resize, I would say do what crazyfly1 said, I did a bubic sharper on all of the steps of a portrait I shot and a little part of the hair on my subject started to look pixelated (not what I wanted but not as bad as that it would be noticeable to the client)

If you are uprezing with photoshop CS 2 or 3 you should use bicubic smoother in one move to final size, not 10% increments.
Also checkout http://www.digitalphotopro.com/tech/the-art-of-the-up-res.html
for great tips from Jeff Schewe.