<p>Led, the answer depends on two things. “Plunge” and and “recover” are very subjective terms. For example, say a person usually gets around 90%, plunges to 80% in the 11th grade and recovers to around 85% or even 90% in twelfth grade, I’d imagine it would not be a big deal.</p>
<p>Any kind of huge recovery shows that a person is willing to work. Hard work matters and is recognised. So it depends on the numbers and how they supplement the rest of your application. Are academics the only strong point of your application? If no, then the drop shouldn’t affect you much, otherwise, maybe.</p>
<p>Unless the drop is huge, don’t feel the need to explain it.</p>