In St. Petersburg, the salary is much lower than in Moscow. On average, 30%. You are right, Moscow is a truly highly paid city. And, unfortunately, all regions of Russia are donors for Moscow. For example, my region is famous for agriculture. All the money that we earn, we have to first send to Moscow, and after the government decides how much send back, we get our crumbs😊😉) people living in the regions are extremely unhappy with such budgets, but no one does anything, because Russian people are very tolerant and will endure until the next revolution happens. Sorrow. I got off topic, sorry😊😉