How to use the Plus Percentage column in Cubit Estimating

Royal Cubit an Ancient Egyptian Ruler Replica This item is an Ancient Egyptian royal cubit ruler replica It was made from a piece of Poplar wood. It was assembled together with a hinge to create the foldable application. It was stained with a chocolate water base product. And a silver pen ink was used to indicate the measurements. This ruler is a Replica in the tomb of Maya during the 19th dynasty of the New Kingdom. History: The cubit is an ancient unit of length based on the distance from the