>   110 Baud as a simple example in fact refered to the transmission of an
>  8 bit data field FRAMED with 1 start-bit, 1 stop-bit and 1 parity-bit

Correct so far.

> Total data transmission size for each byte of data is therefore 11 bits and
> the physical transmission rate for the bits is 100 bits /sec.

Nope.  The physical transmission rate is 110 bits per second, which is why
it is called 110 baud.  But in terms of "usable" data it is only 80 bits
per second, which is 10 characters or bytes per second.