Molten Works Ltd provides the following information about departmental consumption of allocation bases for its 3 support and 2 operating departments. Support departments Operating departments Personnel Cafeteria Maintenance Machining Assembly Personnel 10% 20% 30% 40% Cafeteria 10% 20% 40% 30% Maintenance 10% 20% 50% 20% For the step-down method, what proportion of the Cafeteria's costs will be allocated to the maintenance department if the allocation order is personnel, cafeteria and maintenance? 20% 14.3% 22.2% 30%