stats (theory) question

[AlwaysWrong]

So I've been doing pretty well the last month, coming in a decent clip above 3/100. A friend of mine goes off on me about being weak-tight when we discuss a hand (unimportant). I mention that my wtsd and showdowns won % are in accepted 2+2 parameters and he doesn't watch me play, so it's bs to call me weak-tight. A while later I go to review my stats and it turns out my went to showdown has gone down a couple points recently, but my won $ at showdown has gone up a couple points. And I thought I was playing good! Hmm..

One guy posts his stats here and they are:

went to showdown %: 35%
won $ at sd: 55%

Seem about right?

another guy posts:

went to showdown %: 33%
won $ at showdown: 57%

(If this still seems ok to you, then 32/58? 31/59?)

We say he isn't getting to enough showdowns.

But does this make any sense at all?

If so, why?

Edit: was pointed out that you can't trade % 1 for 1, these numbers aren't linked as simply as I made out above, but they are linked.