When it comes to charging for a painting, there is no one-size-fits-all answer. The price you charge will depend on a number of factors, including the size and complexity of the painting, your experience and reputation as an artist, and the current market conditions.
If you're just starting out as an artist, you may want to consider charging less for your paintings in order to attract buyers and build up your client base. As you gain more experience and your work becomes more in demand, you can start to increase your prices accordingly. It's important to stay aware of what similar artists are charging for their work so that you can remain competitive while still earning a fair wage for your paintings.
One way to determine how much to charge for a painting is to calculate your materials costs and then add a fair hourly rate for your time and labor. This can give you a good baseline price to start from. From there, you can adjust the price up or down depending on other factors such as the perceived value of the painting or market conditions. Ultimately, the best way to figure out how much to charge is through trial and error - keep track of what paintings sell at what prices and adjust accordingly until you find a sweet spot that works for both you and your buyers.