@TheRookie Whatever you promise to offer, make it something that’s within your means. In other words, don’t make any promises you may not be able to keep. You don’t have to offer him anything other than the promise of what you’ll offer him once he delivers a result. Once you actually have the result (i.e. your initial amount in profit) then you can go through with the actual presenting of the offering.
But be aware, people have different ways of doing this (offerings), and it’s not something set in stone. Some people will make extravagant offerings merely for the spirit just hearing them. I’m just telling you how I currently go about it. Just remember, you’re not Bill Gates nor the late Hugh Hefner: it may not be wise to promise him a wild orgy with young beautiful women or something very fine and expensive. And likewise, what Bill Gates (hypothetically if he were into Goetic rituals) would offer a demon would likely not be possible for someone in your circumstance. The point is, it doesn’t have to be extravagant, but something that’s an inconvenience to you but within your means. Think of it as a gift you are presenting; you wouldn’t give a present to someone something that you were going to throw out anyway or something that you wouldn’t care for if you lost it – let that guide you in deciding.