Percentage Markup. Percentage markups are important in a variety of settings because they calculate the percent of a value that can be added to the original value. In a retail environment, an item that is purchased for $5.00 with a percentage markup of 25 percent should be sold for $6.25.Sales tax is calculated in a similar way.ercentage markups are used in retail, government and business environments to calculate the percent of a value that will be added to that value. Excel allows you to calculate percent markup values and then add them to your data.
1. Source: www.flickr.com. Amazon is the largest river in the world, the discharge of the river is greater than the next 7 largest rivers mixed except Madeira and Rio Negro are the tributaries of the Amazon.
2. The Amazon River is the second longest river in the world (the Nile River in Africa is the longest) and is about 4,000 miles (6400 km) long. (In July 2007 a group of scientists reportedly determined that the Amazon River might just be the longest river in the world, taking that title from the Nile River.. The Amazon River has the largest watershed (area of land that flows into the river) and more tributaries (streams that flow into it) than any other river in the world. The Amazon River has more than 200 tributaries. 4. Streams that begin in the Andes Mountains are the starting sources for the Amazon River. 5.