You can view the prices in this tutorial thread here. It’s a tutorial for Season 7 but the rank prices are the same. The new tutorial should be out soon. EDIT (September 21, 2020): This link will break in the future as the Season 8 tutorial will be out any day now, so if you’re using the search tool and you see this thread a few months from now, you might want to check out the Season 8 guidelines at the very top of the first page on the forums.