[Peep 'Puff' Topia]

Having thoroughly tested this, this tooltip is incorrect.

What I don't know is what is intentional. I've been hearing mixed things, but right now after testing various Spirit levels:

Below 150, Spirit grants .017%~ DR per point.
Post 150, Spirit grants .14%~ DR per point.

Which are odd numbers, but it effectively sets you at just under 10% at 200 (and just above 2 at 150). If this is intentional, the tooltip is wrong. If the tooltip should be right, it's not factoring correctly.