Walmart Data Confusion — Why Does My FBM Have Higher Conversion Than WFS (Even Though FBM Is More Expensive)?

I’m a Walmart newbie. I have two listings for the same product — one FBM, one WFS. Traffic is low on both. But here’s what’s confusing me:

FBM conversion: ~15%

WFS conversion: ~3%

And FBM is actually more expensive than WFS.

How is that possible? I’m trying to understand if I’m misreading the data or if there’s something wrong with my WFS listing.

Product is a standard item, good quality, competitive price. No reviews yet. I’ve optimized images, title, and listing.

What am I missing?