We are having an adults only reception (mostly because we didnt have any children to invite) and all beverages other than water and coffee are to be provided by us. We have calculated all the wine and beer to bring, but i have no idea how to calculate the soda.
We're probably going to keep it to 3-4 varieties, and i dont know how to guesstimate for 155 guests and a 5 hour reception.
Any help, or explanations to how you are doing it (or have done) are welcome.

210 Invited

140 Are ready to party!

32 Will be missing out!

38 Are MIA!