This is the 5085th most frequent Polish word.
procenta
"Procenta" in Polish means "percentages" or "interests" (often in a financial context).
Here, 'procent' represents a unit used to express a proportion as a part of one hundred.
Wartość procentowa wynosi dziesięć procent.
The percentage value is ten percent.
In this case, 'procenty' is used informally to denote the scores expressed in percentage on an exam.
Nie mogę uwierzyć, że mam tak wysokie procenty na egzaminie.
I cannot believe that I have such high percentages on the exam.
Here, 'procent' is again used to denote a proportion, specifically the amount of alcohol as a percentage of the total beverage content.