Build a small SQL report for monthly sales and stock

## Goal I need a lightweight data report for my monthly sales and stock numbers. Nothing big, just something reliable I can reuse. ## Scope - write the SQL queries - join a couple of tables correctly - calculate monthly totals and simple trends - organize the output so I can use it in a dashboard later ## Notes This is a small budget task, so I am looking for someone who works cleanly and does not overcomplicate things. If you also have experience with data modeling, that helps, because I may ask for one more report after this one.