.apk and .obb expansion files - Should size of both show?

I have uploaded my .apk and .obb files to Google Play.

My app size shows as 5.7MB in the Google Play store but I know the .obb file is 160MB (well within the 2GB bounds).

 

Is this correct? Will the file size in the Google Play store show as the .apk file size only and not the .obb?

 

What has been your experience with this?