User blog comment:Sirebel/Gold, Gold and More Gold/@comment-29633613-20170716085729/@comment-26829117-20170807131359

Agreed, I should probably count the car win cost in the 100% figures, then it would normally be more accurate but it wouldn't be a delta cost from the full garage. However, it still wouldn't be right as you don't require the NASCAR to maintain 100% career completion. I didn't buy it and I was still 100% career complete at the end of the update.

The table is trying to do two things and probably failing at both.
 * 1) It's trying to record the gold added to the game in each release so the win price is irrelevant in the long run
 * 2) It's trying to give an indication of spend required each release for those aiming for full garage and 100% complete goals

If I was to try and cope with all combinations it would require a much bigger table and lots of exceptions.