Senior secondry leaving examination marks
Which examination marks to mention 10th 11th 12th midterm or protected score?
In America, the SAT is considered the college admissions test however, I believe you're talking about the high school diploma as it certifies you finished the requirements and are leaving secondary school.
If your country offers national leaving examinations and you have graduated, then mention them.
Otherwise, mention the most recent transcript's grades.
Some colleges want you to add additional grades for application (e.g., 9th -12th grade).
If you want to apply there, then you have to add those grades as well.