I'm really not sure why you wouldn't just store the current sale value in the database and build a simple UI to manage it. Why don't you want to store it in the

I'm really not sure why you wouldn't just store the current sale value in the database and build a simple UI to manage it. Why don't you want to store it in the main database? This "side database" will grow and grow and soon you won't know whether to put new features in the main database or the side database and now you have two different databases to maintain with two different tech stacks ... why are you doing this to yourself?