\baremeDefautM{formula=(2*NBC-NMC),MAX=0}

I'm not pleased with MAX=0. I have no idea.

I need total score not to be below zero, when I do as you said it shows -2\1 for example
But when I do it MAX=2, it shows like -2\80

This ?

\baremeDefautM{formula=(2*NBC-NMC),MAX=0,p=0}

I will try to explain in different way, so I have question sheet with 4 subjects
I wrote every subjects questions as a separated groups
e.g Math, Physics, Chemistry and General Knowledge

so my global scoring is, 2 points for correct answer and -1 point for wrong answer, but in general it is like that, 2 points for correct answer and every two wrong answer you have -2 points

But if i had one wrong answer in subject math and one in subject physics, it should go -2 in subject physics, each wrong answer should take points only in subject where i answered wrong, so if I chose wrong answer in math subject it should take points from math subject.

so i decided to count points firstly by subject, then all subjects should be summed

I still do not understand your scoring strategy. Could you post a hand annotated file with the score ?

We have 4 groups of scientific questions: Physics, Math, Chemistry and General knowledge. Total score for each group is 20, thus if a student writes all scientific questions correctly they will get 80 score

And we have English test with 10 questions which will give 10 scores. The remaining 10 score will come from english essay.

The problem we are having with AMC is that, number of wrong answers affects the whole exam score.
Is there a way in AMC to prevent total wrong answers in a group, e.g. Math from affecting the wrong answers in other groups?

We need this feature to at least separate Scientific score from English score.

My score strategy in tex file is like this,

\scoringDefaultS{e=0, v=0, b=2, m=-1, p=0}
\scoringDefaultM{haut=2, p=-1}

total score

Sorry, I use the new option topics.yml and I forget basic options.
Menu > Preferences > Scoring > Floor mark : 0

so my floor mark was 0

After re-reading documentation, p works only with questionmult.
There's something I don't get about floor mark.

I have questioning the author to find out the solution : this is not possible.
Floor mark works with maximal mark not total score.

If you add ppa test and upgrade AMC, the new option topics.yml file works.

so is it possible to add ppa test on macOS? or only on linux?

I need add this .yml file to config folder?

so is it possible to add ppa test on macOS?

I think so. A wiki.

I need add this .yml file to config folder?

Every time, copy it in project folder.

I installed ppa on linux, and I downloaded this yml file, then i just need copy this .yml file in main project directory, right? so my grading strategy is still should be in my source.tex file, right?

I did like you said, installed ppa on linux, added .yml file to project folder, and still didnt get the result like you did

It doesnt see this .yml file

Make a test with my project.

my result

and this if i tick update marking scale

maybe is something wring with ppa that i installed?

Which one did you use?

sudo add-apt-repository ppa:alexis.bienvenue/amc-stable
sudo apt update

https://launchpad.net/~alexis.bienvenue/+archive/ubuntu/amc-stable

and this ppa:alexis.bienvenue/test

You need the test PPA to use topics. What is your AMC version?