In UK, electoral registration boosts an individual’s credit score. Anything of such happen here?

It’s a proportional system.
At a local and county level it’s just a modified Sainte-Laguë method of converting votes into seats.
So non of the leveling seats and stuff used at a national level.

So to understand the formula you start with the idea of number of votes divided by number of seats already achieved and just see who has the highest number and give that seat to that party. (So if theoretical party 1 has 300 votes and 3 seats then you’d have 300/3=100 as a sum and your next seat might go to another party with 250 votes and 1 seat already or some such)
Trouble is just that if you don’t have a seat yet you’d be dividing with 0 seats, and dividing with 0 doesn’t work.
So you do number of votes divided with the number of seats a party has already achieved + 1
So in the 300 votes and 3 seats example above you’d do 300 votes / (3 seats +1 to ensure that it’s never divided with zero)
That leaves you with the d’hondts metode used in countries like Finland.
However that still don’t leave the number of seats a party has as a equal proportion to the number of votes they have instead favoring the bigger parties.
So Norway uses the Sainte-Laguë method where we multiply the number of seats you already have with 2 before adding the 1.
So 300/1 when you have 300 votes and no seats, then you divided with 2×1+1=3 for once you have your first seat, that is 2 x the seat you have + another one to ensure you don’t divide with zero for a 3 as a dividing number and so one and so forth.
The formula is V/(2xS+1) where V is the number of votes and S the number of seats.
This favors the smaller parties.
However it makes the first seat too easy to get.
So we ended up using a modified version of Sainte-Laguë method.

In essence, we divide the total number of votes with with 1.4 for the first seat giving the seat to the party with the biggest number after doing that division.
Then we divide with 3 once the first seat has been achieved and you’re calculating if a party qualifies for their second seat like normal Sainte-Laguë, then we divide with 5 when a party got 2 seats and is trying to get a third etc.
So 1.4, 3, 5, 7, 9, 11 etc…

What the division is used for is to see what party gets a seat.
So a seat isn’t given to the party with the highest total vote but the highest number after dividing their vote with the number above that corresponds with the number of seats they already have, so if 0 seats already then 1.4 and if 1 seats already then 3 and so one.
And that seat is given to the top person on that list of the party that has the highest number after dividing their voters on that number haven’t already been given a seat, unless changes has been made.
If you vote to change the order on a party list then you essentially vote to have that list reordered.
And if enough voters for a party makes a change then that will become the end result regardless of what the party leaders might have preferred when they made that list in the first place.
Meaning that if the three top spots in a list are people who are unpopular you can move up spot 4 and perhaps add a couple of people from other parties and if enough people in that party does the same thing as you then that person from another party or whatever will get that spot on that list and may get that seat if the list qualifies for a seat at that spot.

(That kind of gives us the option of electing individuals like in first past the post systems like the UK while still ensuring some degree of proportionality)

At a national level we add to the complexity a bit by doing the above at a county level to distribute the seats for a county to the parliament.
And then to correct the difference between that number and the the proportional popularity of a party at a national level there’s one extra seat pr county that’s reserved for the same calculation done at a national level, but only for parties with more then 4% of the voters supporting them (there’s no lower limit for the number of votes to get a seat in the parliament from a election circle directly)

Btw, if this was way, way, way too complicated then I’m sorry and I can try to answer questions or simplify things…

But basically don’t worry about tactical voting or your vote being “wasted”.
You can do something like using a questionnaire about what you care about that compare your answers with that of the various political parties to get an idea about what to vote for (or you can look at their party programs) and just vote for whatever you genuinely agree the most with.
And ignore all the details.

Great to hear! “God valg” 🙂

I’m not sure what you’re asking exactly?

No, voting isn’t compulsory