I've written the following working script for counting money. You tell it how many coins and notes you have and it calculates how much money you have. The problem is I'm sure the script is much longer than it needs to be and I'm unsure how to make it shorter, any help would be greatly appreciated. I've only been working with perl for a few weeks so my knowledge isn't too good at the moment. Thanks in advance. 
#!usr/bin/perl

@pence=qw(5 10 20 50);
@notels=qw(5 10 20 50);

$note = $notes[0];
$coin = $pence[0];

sub pence{
print "How many $coin pence pieces do you have? ";
$num=<STDIN>;
chomp $num;
$res = ($coin * $num)/100;
}

sub notes{
print "How many £$note notes do you have? ";
$num=<STDIN>;
chomp $num;
$res = ($note * $num);
}

$coin = $pence[0];
&pence;
$five=$res;

$coin = $pence[1];
&pence;
$ten=$res;

$coin = $pence[2];
&pence;
$twenty=$res;

$coin = $pence[3];
&pence;
$fifty=$res;

$coin = 1;
print "How many £1 coins do you have? ";
$num=<STDIN>;
chomp $num;
$res = ($coin * $num);

$coin = 2;
print "How many £2 coins do you have? ";
$num=<STDIN>;
chomp $num;
$res = ($coin * $num);
$twopound = $res;

$note=$notels[0];
&notes;
$fivenote=$res;

$note=$notels[1];
&notes;
$tennote=$res;

$note=$notels[2];
&notes;
$twentynote=$res;

$note=$notels[3];
&notes;
$fiftynote=$res;

$total = ($five + $ten + $twenty + $fifty +$pound + $twopound + $fiven
+ote + $tennote + $twentynote + $fiftynote);
print "You have £$total.\n";

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In reply to Can someone help me make this script more efficient by Anonymous Monk

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