You can sometimes use a circular reference to your advantage. For example, suppose a company has a policy
of contributing 5 percent of its net profit to charity. The contribution itself, however, is considered an
expense—and is therefore subtracted from the net profit figure. This produces a circular reference (see the
accompanying figure).
The Contributions cell contains the following formula:
=5%*Net_Profit
The Net Profit cell contains the following formula:
=Gross_Income-Expenses-Contributions

These formulas produce a resolvable circular reference. If the Enable Iterative Calculation setting is on, Excel
keeps calculating until the Contributions value is, indeed, 5 percent of Net Profit. In other words, the
result becomes increasingly accurate until it converges on the final solution. 
Attached File : 26 circular reference to your advantage.doc downloaded: 176 times