Costco is predicted to significantly increase its membership fee revenue due to the new membership scanning process. The speaker quantifies this potential by stating that a 3% increase in Gold Star members (similar to Netflix's user growth after cracking down on sharing) could add $130 million in revenue, which represents a 2.69% increase in total membership fees.
"I think cost can make a lot of money with this new process... if Costco added 3% more let's just say Gold Star members that would amount to $130 million in revenue and that would represent 2.69% of an increase to the membership fees that doesn't sound like a lot but considering they actually do $4.8 billion in membership fees it still is significant"