Estimating expansion in an economy requires objective method for separating changes in ostensible costs on a typical arrangement of labor and products, and recognizing them from those cost shifts coming about because of changes in worth like volume, quality, or execution. For instance, if the cost of a container of corn changes from $0.90 to $1.00 throughout the span of a year, with no adjustment of value, then, at that point, this cost distinction addresses expansion. This single value change wouldn't, be that as it may, address general expansion in a general economy, To quantity in general expansion, the value change of an enormous "crate" of agent labor and products is estimated. This is the motivation behind a cost list, which is the consolidated cost of a "container" of numerous labor and products, The consolidated cost is the amount of the weighted costs of things in