OP hasn’t said what schools they are applying to (at least not in this thread). Without context, the 76th percentile could be high, average, or low relative to the school’s population. I would just send in SSAT scores to schools where your scores are above average. And you could also broaden your search to include more schools where that criteria is met.
Just as a thought - I think it’s preferable to be at a school where you are above average vs below average.