You can bypass "circular reference" warnings in these cases by disabling automatic worksheet calculations, i.e. use the manual recalculation, which means every time a value changes you need to press F9 to recalculate.
You don't mention your Excel version, but for Excel 2016
To put the workbook into manual recalculation mode, you select the Manual option on the Calculation Options’ button on the Formulas tab of the Ribbon (Alt+MXM). After switching to manual recalculation, Excel displays CALCULATE on the status bar whenever you make a change to the worksheet that somehow affects the current values of its formulas. Whenever Excel is in Calculate mode, you need to bring the formulas up-to-date in your worksheets before saving the workbook (as you would do before you print its worksheets).
To recalculate the formulas in a workbook when calculation is manual, press F9 or Ctrl+= (equal sign) or select the Calculate Now button (the one with a picture of a calculator in the upper-right corner of the Calculation group) on the Formulas tab (Alt+MB).