Hydration in Huel AZ

Does anybody know what % of hydration the Huel energy drinks are? I track my food and hydration intake on Apple Health as well as all the vitamins / nutrients. I realised one of the apps that assists in this assigns tea and coffee as something like 90%.

What is appropriate for AZ vitamins? Out of the 330ml; what’s an appropriate estimate of how much contributes to hydration?

I didn’t want to assume it was the same as many sugar laden syrup heavy fizzy drinks online