@oilgas I working on my frame work for understanding bonds and here's how I trying to conceptualize.
Market > Stated = Discount If the market pays more than Iam offering I have to take less to get people to buy the same thing
Market< Stated= Premium If I pay more than the market people have to pay me more for the same thing
Interest payable- The amount I said I would pay (Face x Stated Rate)
Interest expense- The amt I have to pay based upon effective rates (E in expense and effective) Net Book value x Effective rate
The difference between these two amts are what move the discount or premium recorded due to the differences in rates.
The one thing Im still working on with this concept is how to keep it straight of when to used face value vs book value