Question on mixing bulk reef chemicals

[Rus]

I was hoping someone might know how many cups are in a pound of Sodium Bicarbonate , and Calcium Chloride Dihydrate.

Just trying to do some quick calc. on amounts needed per month for my tank. I'm in the process of switching over to 2 part dosing , and figure it will be much more cost effective using bulk as opposed to premade solutios.

TIA.