321.3. An employer who makes a periodic payment that is lower than the payment that should have been made must make up the difference and is liable to a penalty of(1) 7% of the difference, if the difference is made up within 7 days after the date on which the payment is payable;
(2) 11% of the difference, if the difference is made up within 14 days after the date on which the payment is payable; and
(3) 15% of the difference in other cases.