Der Prozentsatz der Raucher ist in den letzten Jahren gesunken.
The percentage of smokers has fallen in recent years.
Wir müssen den Prozentsatz noch genau berechnen.
We still have to calculate the percentage exactly.
Welcher Prozentsatz der Schüler hat bestanden?
What percentage of the pupils passed?
Note
The article is part of the word: der Prozentsatz. That way you learn the gender with it.
Remember der Prozentsatz for good. ripiti brings the word back just before you forget it, with these sentences. Free, no account needed, works offline.