There are more ways to get the max of a array. You can calc to max value whenever you insert something, or use 
use List::Util qw/max/;
my $highestvalue = max @holdmutual;
printf "%.3f", $highestvalue;

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The other part of the question is that you might use sprintf or printf.
Boris

In reply to Re: getting the highest value in a simpler way by borisz
in thread getting the highest value in a simpler way by replicant4

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