If it is a one-on-one course, then around 300 is a reasonable price. All the graduate students who came back from studying abroad have a very high teaching level. )
French public universities are free of tuition. If you want to learn French because you are studying abroad, you generally need to learn the level of B 1, which takes about 4-5 months. The price is in the early 1 10,000. Studying in France and learning French is very cost-effective.