Thanks to your comments I think I have it roughly worked out (see Part I).
Calorie King does indeed add a decimal so fat is approximately 9.5 calories per gram, and protein and carbs approximately 4.2 calories per gram. It is not exactly precise or even remotely consistent because I can get today's to work out almost exactly but yesterday is still a fair bit out. I tried all sorts of permutations and then my brain exploded so I gave up.
You either trust that CK is accurate or decide not to care.
I have decided -- not to care -- but I am very sad that I get even less fat for my calorie spend because I am the fatty fat fatty fatness queen of eating fat [mmmm peanut butter, whole eggs, chicken thighs and red meat ... ]