RecipeDentaku will calculate and tell you exact amount of cooking ingredients you need for requested numbers based on whats described on a cookbook you have.
When you want to calculate just the quantity, please input figures into yellow-tinted fields and touch "Output" tab.
To record your recipe, fill in the entries and touch "save as a photo," then the recipe is saved on your photo-album.
RecipeDentaku comes with a cartoon-strip quick guide.