the disparity in ingredient quantities

Hello, how is everyone?

I’ve noticed that in many perfume formulas—especially the ones sold on formula-selling websites—the ingredient quantities are very far apart from each other. I don’t understand how that can be achieved. I sometimes think maybe it’s part of a base, but then I say to myself: since it’s from a site that sells full formulas, I doubt it. Because if it were a base, it would be mentioned. But these are just materials in different amounts.

Another thing is that I conduct my experiments using ingredients that I’ve diluted to 10%. And when I try to build and test these kinds of formulas to learn from them, the ingredient amounts are so far apart that I’d need at least 30 grams of oil just to run one test. I think that’s too much, especially for an experiment.

Even when I try to dilute further—to save the small amounts I have—down to 0.001, I still find ingredients like vanillin included. And it doesn’t make sense that I’d need to dilute it to 0.1 just to be able to test it.

Also, seeing that made me realize that in my own experiments, where I work with 4 or 5 grams in total, the ingredient amounts I use are always very close to each other—not at all like these kinds of formulas.

Sorry if my message is long, but this has really made me stop and feel confused. I honestly don’t know what to do.

I hope anyone with information can share it with us, and I thank you all for being here.