1 Gross margin for a coffee shop is about 85%, with operating income averaging 2.5% of net sales. 2  The labor intensive nature of the coffee shop business places a premium on friendly, high energy teams which generate about $50,000 in annual revenue per worker.
The team at Amazon helped us put together a list of the most popular products with the most user reviews. Unsurprisingly, many of the top products are made by Amazon. But there are a lot of other cool tech gadgets, from headphones to hair straighteners, that sell like crazy on the platform. Here are the best-selling gadgets from Amazon.
Most Popular. 1  Scientists have spiders producing enhanced web that can hold a human. 2  Apple to debut new iPhone at 'spaceship' campus. 3  Why iPhone 8 may be biggest redesign yet. 4  Hands on Sphero R2-D2 and BB-9E Star Wars: The Last Jedi droids. 5  LG's V30 looks like an incredible phone.