my @array_of_hashes = \( %finalMap1, %finalMap2, ... );
foreach my $finalMap_ref ( @array_of_hashes ) {
    push @returned_sorted,
         [ sortedHash( %{$finalMap_ref} ) ];
    push @percentile_index,
         [ percentile( @{$returned_sorted[-1]} ) ];
}

##</code><code>##

    push @percentile_index,
         [ percentile( sortedHash( %{$finalMap_ref} ) ) ];