It's not possible to answer the question as asked. There are too many types, models and variations of these guns to consider. These guns can sell for as little as a few hundred dollars up to thousands, depending on what it is, when it was made and condition. Condition is everything when appraising a gun. As always, it's recommended that you have it appraised at a Gun Shop or qualified professional.
Basically impossible to value with no other information.
The 76C prefix dates your browning 9mm hi-power to 1976.
500 USD
600 USD, no more
Value of a Browning Hi Power in caliber 9mm Luger (9mm parabellum) will vary, depending on EXACT model (thee were several) markings, and condition. It may be as low as $300, or over a $1000 for the scarce specimens.
Yes, It is the same as the 9mm Hi Power Manual.
1968
Belgium
I am aware of only one chambering in the Browning hi-power,that is 9mm parabellum.
With the serial number that you provided,your Browning Hi-power was produced in the year 1968.
your browning hi-power was made in 1974.
100-1000 USD and up depending on specifics