You can earn over 15 or more, depending on what workshops you buy, locations, and whether they're well stocked.
Workshops can help you earn over 10 denars per day. It's an easy way to start making money early in the game, but eventually you'll want more. You can refine the raw materials for more profit or craft items to sell.
There are early game quests you can complete to earn a lot of money. Workshops are (currently) the best way to make money in the game, but you'll need at least 16 Denar before you can start buying. To start making endless money, you will need to save. How To Earn Endless Passive Income Cash Farming Guide Below, I'll walk you through everything you need to start your business empire on the right foot. Every workshop is different and it is not clear exactly how to buy a workshop or how to restock one. All you need to do is keep the workshops stocked with the goods they need. If you are the owner, you will earn passive income every day in the game. For around 16 denars you can buy your own workshop.