Performance materials - computation xls

Metric is a file in excel. contains a list of construction materials with their prices; which if you want to be changed and automatically change in the other sheets as all the leaves are made with formulas. contains a sheet summary of costs; prices of materials; list of calculation formulas for the respective; formulas (performance materials, very extensive and very good); gral a budget. housing for type; gral a budget. housing for 2 floors; gral a budget. for a shed of hºaº; gral a budget. for metal shed. prices are not updated; but as i said before it can be updated in the metric calculation