Average % overviewshots & close-ups weddingshoot ?

How much % of the COUPLESHOOT would be overviewshots & closeups on average ?
Is there also time to shoot the bride seperately ?

Depends entire on the couple I'm working with. Some people are comfortable with the camera up close others aren't.

What's an overshoot? I'm unfamiliar with the term.

Percentage depends greatly on the time available. It would help if you would define the term as overshoot seems totally made up. Whether there is time to shoot the bride separately depends entirely on planning, ability to stick to that plan on the face of unexpected events, and the brides priorities.

The OP said "overviewshots" not "overshoot".

what's an "overviewshot"?

I guess you're talking about closeups vs wide shots showing the environment. I'd say 20% close, 80% environment, but it depends on your definition. I shoot a few tight shots, head to foot "grandma" type shots, but most others show the environment to some extent. In those sometimes people fill 30% of the frame, sometimes 5% of the frame.

For all the important shots, I like to personally shoot a tight and a wide(full body) and if I have the time a midway between the two.

Gives options for the album and for their own desired prints.

For us a great deal depends on the location, we had 1 wedding that had 80% tight shots, another wedding had 80% wide view showing the venue. Not all venues are worth shoring a lot of.