Every step of DNA replication needs special molecules to do the work. These molecules are called enzymes. As we go through this, remember, all that is happening is the DNA is being unzipped and each side of the zipper is being copied.
Markup as a Percentage of Cost or Selling Price. Markup can be expressed as a percentage of cost or of selling price. Consider an item that costs the seller $50 and retails for $100.This is a 100-percent markup over cost, but in terms of the selling price it is only a 50-percent markup. Retailers typically express markup as a percentage of selling price.arkup as a Percentage of Cost or Selling Price. Markup can be expressed as a percentage of cost or of selling price. Consider an item that costs the seller $50 and retails for $100.
How to Calculate Markup. If we know the cost price and percentage markup, then the sales price will be the amount of markup sum the original cost. For example, if the markup is 50% and the original cost is 6.00 dollars, then sales price becomes dollar 6.00 + dollar 6.00 x $\frac{50}{100}$ = 9.00 dollars.uestion 3: If a shopkeeper is using the markup as 50% on an item, then find the selling price of that item if the cost is given as 100 dollars. Solution: Markup = 50% of the cost price. Markup = 50% of 100. = 50. selling price = cost + markup. = 100+50. = 150. So the selling price of the item is 150 dollars.