I don't think you'd need to put in every ingredient. If you know you predict that you're going to be selling twice as many waffles this week, buy more ingredien

I don't think you'd need to put in every ingredient. If you know you predict that you're going to be selling twice as many waffles this week, buy more ingredients for waffles. If sales for cheeseburgers are expected to be down, buy less cheese.