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I've been in the fast food business for 30 years (an investment). When I bought someone else's failing location, one of the first things I noticed was that his chip rack had 12 varieties to choose from. One of the first things I did was reduce that choice to the five best selling items.

Sales of chips went up about 25% immediately.

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Out of interest, how did you choose 5? Did you experiment and measure or observations of other stores?

"five best selling items"

I assume he meant the five that were the best-sellers at his own store.

Weekly inventory showed how much of each item we sold. The previous owner would keep in stock things that might only have a few purchased per week. His excuse was only to have variety.

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