What are the procedures for performing the functions of accounting using the perpetual inventory method

Why twice the same question ?

This is an entire chapter, and an extremely vague question. You want ALL the stuff done? I doubt I could even think of everything. There's entries under different circumstances, there's keeping track of inventory itself. You could mean just about anything.

And now that I've read this question, I realize the other one about "calculating" COGS could even mean how to keep track of the inventory itself -- and that would entail a big example that I wouldn't even know how to get on this forum, and also involves an entire chapter.

If you would like help, you need to be more specific, and break things down into smaller pieces.