Issue - May 2013
Circular reference occurs in Excel when you set up a formula that includes itself in the formula. A simple example is when you create a SUM formula in D10 trying to add up D5 to D10. In this case, D10 is trying to add to itself. It is easy to detect circular reference in your own worksheet because Excel prompts you immediately when a circular reference is created. You can check on the last formula and remove the circular instantly. The real problem occurs when users don't read the error message carefully when it pops up and continues to work with a worksheet containing circular reference which causes some valid calculations to fail. To find out how circular reference in a workbook is created, refer to our Applied Excel website.
I am working on a spreadsheet with regards to construction, I have a start date say 1 July with a duration of 10 days to carry out the works, therefore we need to complete 10% per day. I have a summary progress chart that will record the % completed, however i need to calculate the planned %, so my problem is how do i link the start date to the summary and get the same to calculate the same on a daily bases, ie today's planned is 10% and every day thereafter the planned % needs to increase by the daily planed %
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