We have this type of information spread at several places so I figured it would be a good idea to gather in one spot. Anyone can feel free to share whatever they want. I'll go ahead and post some of the things I've come across. Apologies ahead of time to the original sourcex because I honestly don't know who created many of these charts, but thank you! Even though this thread is closed, it will constantly be updated!
Platinum 61-80= 3,170,000
Using the multipliers below, you can compute any ratings at level 10 for any tier:
Example: A rating of 112/110 at bronze 1 would be 410/403 at diamond 10.
Below are the leveling costs for all players with and without various discounts. Keepers are 3x bxp cost and ML is 5x bxp cost.
Below are the club leveling charts. Left to right, it's bronze, silver, gold, and platinum.