Given the following information:

a$.$ What is the square footage storage requirements for: Racking, Shelving, and Bulk.

b$.$ How many square feet does the DC need to be to accommodate peaks and annual growth over the $5$ year design timeline; the estimated space requirements for Racking, Shelving, and Bulk should be provided $($only consider the actual space for storage, not the walkways and aisles$).$ i$.$e$.$ what is the expected storage percentage of a typical DC$?**$ Hint $$ somewhere between $1,500,000$ and $2,000,000$ sq ft$.$