Talk:Porsche 911 RSR Championship/@comment-26483027-20160517141010/@comment-27962837-20160517152900

86.8 If every tier rises by 0.6 PR. 81.8 at tier 9, you have 8 tiers left (the 10th and 7 more), so 81.8 + 0.6 * 8 = 86.8