This is a version of my Dark Fog Sorter… without the sorting. It's a Battlefield Analysis with all of the slots allocated relative to the number of drops. The computation is a bit weird, but you can see all of my work here in case the rates change: https://docs.google.com/spreadsheets/d/1YUr85YS6cANSZrZWZR0PE2sm24l7V_BMC85gj6jVoZQ
For late game, you should probably use my larger version that includes actually sorting out all of these items into depots. However, if you just want to plop down a base that has all the slots figured out, you can use this instead.