Coffee

The Costco coffee beans I use are roughly 25 g per 1/4 cup or 6-7 g per Tablespoon.
1 US cup = 236.5 ml
2 tbs = 1 coffee measure = 1 fl oz is approximately 12-13 g coffee on average.
Most coffee literature assumes 6 oz per cup. Some assume 5 oz. This generally refers to water before brewing with some lost to the grounds.

Mr Coffee 12 cup measure = 60 oz (by weight even though their documents claim volume. It is 57.5 fluid ounces) or 1700 ml for a 5 (actually 4.8) oz cup or 142 ml. They recommend 9 tablespoons at 5 g per tablespoon (their estimate) for 12 cups with amounts scaled linearly down to 3 T for 4 cups. That would be 45 grams for 1700 ml or 26 g per liter.

I see the Specialty Coffee Association of America standard is 10 coffee g per 6 oz (177 ml) water (56 g /liter.) From www.thecoffeefaq.com

A standard "cup" of coffee uses six ounces (177 ml) of water. The SCAA's standard measure of ground coffee for this quantity of water is 10 grams (+/- 1 gram) or slightly over a third of an ounce (or, simply, two tablespoons). Since the ground coffee will absorb water, you will be left with approximately five and one-third ounces of coffee. 

The author doesn't specify the brewing method. The assumption is that the coffee absorbs twice its weight in water, leaving 155-160 g per "cup".

With 2 tablespoons coffee (10 g) per 6 oz cup (177 ml) I get 100 g for 60 oz or 1 cup of ground beans. Roughly 55 grams per liter. I should lose 200 g of water to the grounds for 1500 ml or about 6 and 1/3 US 8 fl oz cups. (50.7 oz).

We have been using about 50 g per 1700 ml.  100 g is very strong, drinkable but I think it's better diluted. Diluted it tastes a little better than 50 g. I'm using 67 g now and it seems a reasonable compromise.