My program accepts 3 percentile inputs ($pre, $amble, $post ) which should sum to 100, if they don't I wish to correct them such that they do.

If the sum is greater than 100 I wish to favour amble, then pre, then post.

If the sum is less than 100, post takes up the slack;

The following achieves my aim, but it doesn't seem very elegant (perlish), and I am sure that it can be improved upon. 

$pre = (shift) % 100;
$amble = (shift) % 100;
$post = (shift) % 100;    
if ($pre + $amble + $post != 100 ) {
    $pre = 100 - $amble 
           if ( $amble + $pre > 100 );
    $post =  100 - ($amble + $pre) 
           if ( $pre + $amble + $post != 100 );
}
print "$pre + $amble + $post = ", <br>
$pre + $amble + $post , "\n";

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When is p the complement of ch?
When in the company of Erlish!

In reply to Not very perlish? by Anonymous Monk

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