[draft]

Although the difference between the just-below price and the round value is normally so small that it hardly affects the profit per unit sold, using just-below prices instead of round ones price to increases sales substantially. For instance, suppose that a certain product is sold for $100 and its profit (subtracting all costs involved) is $20, to the cost resulting in a price that is just below this round value. For instance, not rarely, is perceived by a potential customer as . The resulting in a price that, although is just below the round value, . Although Not rarely, the resulting price is  resulting in a price that can be perceived as significantly different one.

• Information overflow
• Ignoring what is usual
• Charming price
• Anchor effect