A convenience store on Arkana Road in Westminster was robbed yesterday morning.
Two men entered the deli at around 9.30am, one armed with a knife and the other holding a metal pole.
A 24-year-old male store attendant was threatened by the two offenders before they jumped over the counter and took cash from the till before fleeing the premises.
Police spokesman Gerry Cassidy says the Regional Investigations unit inspected a Koondoola addres the next day were a good quantity of cash was found.
A 23-year-old man has been charged with armed robbery and will appear in court today.
A 17-year old man will appear in the Perth Children's Court facing the same charge.