As others pointed out, always use strict and use warnings

But additionally using perltidy would have given you a visual hint, and this also in the even case.

use warnings;

my %hash = (
    'accents'    => 'utf-8',
    'accounting' => 'money',
    'bank'       => 'money' . 'ing' => 'money',
    'perls'      => 'perl'
);
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