Don Meij's Domino's Pizza tried to sugarcoat its announcement to the ASX reporting on the Fair Work Commission's (FWC) decision to scrap its existing pay agreement with more than 20,000 employees in its stores. But there was no disguising the impact.

The higher wages bill is expected to add tens of millions of dollars to the operating costs of the franchise operator and its franchisees every year.

Hungry Jack's founder Jack Cowin agrees with Prime Minister Malcolm Turnbull that Sunday penalty rates are an anachronism.

The stock had dropped more than 6 per cent by 2.40pm, this was after the decision was handed down but 19 minutes before Domino's released its own update to the ASX.