Owner Chris Gilmore said shoplifting was almost a daily occurrence, although it had slowed lately.
The store has 20 CCTV cameras inside and out, and in the storeroom.
Images of people alleged to have stolen from the shop are on display behind the counter in the hope they will be identified by customers, then added to the list of people already charged by police.
The Belmont Local Policing Team is calling for public help to identify two people and a car in relation to a ram-raid last month.
Sergeant Shane Markham said the numerous shoplifting incidents were not believed to be related to the ram-raid.
A small blue hatchback car was used to gain entry through a side roller door about 4.55am on Sunday, September 21.
Mr Gilmore, who owns the Belmont and Kalgoorlie SportsPower stores with wife Julie, said the car’s impact damaged the door, three pool tables and their office wall.
Everlast jumpers and football guernseys for West Coast, St Kilda and Carlton were believed to be taken by a man, while a second person remained in the vehicle.
Police describe the first man as being dark-skinned, in his 20s, of solid build and wearing a dark hooded jumper over a shirt with yellow or white and blue, possible a West Coast Eagles guernsey.
The man was also wearing dark shorts and shoes.
The second person police want identified is described as being dark-skinned, of slim build and wearing dark clothing.
– Anyone with information about the incident is urged to call Crime Stoppers on 1800 333 000 or Belmont Police on 9424 2700 and quote reference number 210914 0540 87921.