Supermarkets Agreement 2012 Adult Rate The normal weekly pay for an adult aged 21 and over is $565.90 Junior Rates The wage rates for a junior employee are based on a percentage of the adult rate. Age Rate Adult: 21 and over 100% 20 and under 21 years 90% 19 and under 20 years 80% 18 and under 19 years 67.5% 17 and under 18 years 55% 16 and under 17 years 50% Question prompt and response areaFill in all answer spaces How many people aged 16 and under 17 years can be employed for the same cost as one adult employee? people