Surround this with your loop and you may be golden (there are better regexes to match a floating number, but this should serve your purpose with the above dataset): 

my ($highest) = sort { $b <=> $a } $string =~ /([\d\.-]+)/g;
print "$highest\n";

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In reply to Re: foreach nightmare! by perlguy
in thread foreach nightmare! by Anonymous Monk

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