Putting percentile rank in common app?

<p>When I gave the Common Application secondary school report form to my counselor, he told me to fill out some parts for him (probably because he doesn't know how to fill it out) Since I'm no guidance counselor, I'm stuck on a question. </p>

<p>For the section: "If a precise rank is not available, please indicate rank to the nearest tenth from the top ___," Is it okay to put a percentile rank instead of a decile rank (for instance, 1% or 5% instead of 10% or 20%)??</p>