Hi,
I just breifly looked thru the sources posted on goggle as posted by cchiu, those sure are expensive.
I'm using 'Now Your Cooking' which is a non-pro. program but it has all the features the pro. software does for WAY less money. I bought their software for $39.00 and that includes free upgrades forever. I tested it out for free...their shareware.
Maybe you might want to take a peek....? It's not as non-professional as you might think! It does so many things I couldn't list them all (and I'm still learning them), and YES you can cost out your recipes and scale them up and down which are probably your main concerns (it uses weights or any form of measurement).
You can sample them at
http://www.ffts.com I thought their on line literture abit dry to sort thru, but it's rather easy to down load the program for free and play with it. There was a smooth brainless transition from shareware to buying its software.