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.
A: The Nile is the longest river in the world at 4,132 miles long and is the site and lifeblood of the ancient Egyptian civilization. The name of the Nile com... Full Answer > Filed Under: Bodies of Water.