Thank you for this. A lot easier than using a calculator.
After tons of googling, I landed on this. It's from season six, (furious), but there was no change mentioned in either the season 7 or the season 8 pages.
All arena teams that are below a 1500 arena rating will always earn arena points as a 1500 rated team.
This is at the end of the second paragraph.
Does this still apply now or has it changed?