Hi every one im new to your website finding it very helpful though. I have a question about simple box fill calculations.

When figuring the number of conductors in the box for example 2 duplex plugs, 2 cable clamps , 4 #12 wire 2 grounding wires, and 1 bonding jumper.
would the total #12 conductors be 12?
see i was reading in the code book where 314.6(b)(4) and dont realy get this one are they saying the device itself (counts as one)or what? And are the jumpers counted at all? Hey thanks for hearing me out.