For interest the same task using a database could look like the following:

use strict;
use warnings;
use DBI;

my @date = qw(year month day hour minute);
my @items = qw(burgers fries sodas);
my @fields = (@date, @items);
my @entries      = (
    makeEntry(
        'day'          => 1,
        'month'        => 1,
        'year'         => 2000,
        'hour'         => 4,
        'minute'       => 44,
        'burgers' => 5,
        'fries'   => 3,
        'sodas'   => 11
    ),
    makeEntry(
        'day'          => 1,
        'month'        => 1,
        'year'         => 2000,
        'hour'         => 4,
        'minute'       => 45,
        'burgers' => 2,
        'fries'   => 4,
        'sodas'   => 7
    ),
);

unlink 'delme.sqlite';

my $dbh = DBI->connect("dbi:SQLite:dbname=delme.sqlite","","");
my $sql = <<SQL;
CREATE TABLE Sales (
    year INTEGER,
    month INTEGER,
    day INTEGER,
    hour INTEGER,
    minute INTEGER,
    burgers INTEGER,
    fries INTEGER,
    sodas INTEGER
    )
SQL

$dbh->do ($sql);

my $columns = join ', ', @fields;
my $places = join ', ', ('?') x @fields;
my $sth = $dbh->prepare ("Insert INTO Sales ($columns) VALUES ($places
+)");

$sth->execute(@$_) for @entries;

$sth = $dbh->prepare("select * from Sales order by Year, Month, Day, H
+our, Minute");
$sth->execute();

while (my $row = $sth->fetchrow_hashref()) {
    printf "%04d/%02d/%02d %02d:%02d:00\n", @{$row}{@date};
    printf "   %-7s %s\n", $_, $row->{"${_}"} for @items;
}


sub makeEntry {
    my %row = @_;
    return [@row{@fields}];
}
[download]

Prints:

2000/01/01 04:44:00
   burgers 5
   fries   3
   sodas   11
2000/01/01 04:45:00
   burgers 2
   fries   4
   sodas   7
[download]

But now that you have the data in a database you have much better options for extracting interesting information. For example, you can now order the output by, say, soda sales with a simple change to the select (select * from Sales order by fries desc, Year, Month, Day, Hour, Minute) or look at sales during a particular time each day (select * from Sales Where minute = 45).