There's a whole bunch of problems here. Apart from those already mentioned, do you really mean to put each result into a seperate table with no </table> tag?

.....
## Rather then getting '$all_info' with one fetch, then getting a N_NU
+M with a seperate fetch, do it all at once.
## (assuming you are using two tables). Now you can skip the sub all t
+ogether.

my $tablerows = "";  ## Build the table row data, then add it to print
+.... 
my $sth = $dhb->prepare("SELECT a.product, b.number FROM tableA a, tab
+leB b WHERE a.id = b.id"); ## or whatever
$sth->execute();
$sth->bind_columns(\my($product,$number));  ## use bind_columns
while ($sth->fetch()) {
    my $found = ($number) ? 'FOUND' : 'NOT FOUND';
    $tablerows .= qq{<tr><td width="15">&nbsp;</td><td class="textgrey
+b">$product</td><td class="textgreyb">$found</td></tr>\n};
}

## Using here-is
print <<HTML;  
<table width="100%" border="0" cellspacing="0" cellpadding="0">
$tablerows
</table>
HTML
....
[download]

You might want to read up on HTML::Template, as suggested earlier, for another way to output out the HTML