Acres/deer is how you assess overall herd numbers. You will have some target density, depending on what part of the state you are in. For us in the Hill Co, that is a winter density of 8 to 10 acres/deer. You usually use winter or post-season density for target because that includes all fawns that have survived to that point, and also takes into account all deer harvested that season.
Your biologist will set your MLD harvest tag allocation based on the difference between your current surveyed density, your target, and your current surveyed and observed Buck:Doe ratio, with some adjustments for average fawn recruitment % (average number of fawns per doe) and natural mortality (deer killed by causes other than hunting) in your area.
Pretty fun to start playing around with the numbers once you do your first round of surveys. You can start to calculate how many years it will take you to get where you want to be.