Confused about common application rank?

<p>So i got my rank and it's 169 out of 515. I'm in the top 50%. Now, on the college app it says: Exact, Decile, Quintile, and Quartile. I don't know how to go about this lol. Can anyone help me out? Much appreciation.</p>

<p>Select "Exact" and enter your rank.</p>

<p>exact is your actual rank</p>

<p>decile is in tens (like 10%)
Quintile is 20
Quartile is 25</p>