Food Database I want to add something

I make my own hummus. I went thru some of the 'homemade' ones to find caloric intake because when I added it it seems way low 50 cal or way high 400+cal for 1/2C,
I want to just confirm I am doing my math right.... 1 can Great Value brand Chick Peas have 110 cal, 6 protein, 6 fiber, 1 sugar, 330 sodium, 300 potassium, 18 carb. It says 3.5 servings per can. I use 2 with 1/3 C Tahini. I researched the calories of that.
My recipe makes 4 Cups. I took the 110 cal can x 3.5 servings for 770 calories divided by 4 if I want 4 one C servings andd in the calories for the tahini figuring the same multiplication and division for 289.5 calories.
If my math sounds rightI can continue that principle for the fat, protein etc I just want to be accurate before I add it in case anyone uses it.
Thanks

Kelle