Memory Size in Editor Log. Wrong?

When checking my memory sizes of various assets in the editor log I notice that the log includes assets that the initial build does not contain.(a lot of textures!)

However my initial build does load an asset bundle which contains these assets (when run) but WHY would the editor log include these as if they were part of the initial build size?

It is me that is wrong. I found a reference to the asset bundle in my initial built scene so the bundle was getting zipped up with this too! That saved me a couple of meg! :)