I'm wondering how to do this better than my 4 line method. Feels like I'm missing something obvious. But example code below works Basically I want to show weight * price = total but allow a minimum weight but if it's a negative weight it should be the reverse of the above Expected results: 2.3 = $23 .3 = $10 0 = $10 -.3 = -$10 -2.3 = -$23 
$wt = $ARGV[0];

$min = 1;
$price = 10;

while ($wt ne '') {
    $nwt = abs($wt);
    $nwt = $min if $nwt<$min;
    $total = $nwt*$price;
    $total = -$total if $wt<0;

    print "Price: $total\n";

    print "Next Weight: ";
    chomp($wt = <stdin>);
}

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In reply to Some simple math and absolute values by sidmuchrock

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