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CELL REFERENCING IN FORMULAS AND ITS TYPES


                 A cell reference is a cell address that is used in a formula to denote a specific cell. A formula may contain
                 references to other cells. In such a case, the result of a formula depends on the values in the referenced
                 cells. In case you make any changes to the referenced cells, the result will automatically be changed.
                 To see how this works:
                    Enter 10 in cell A1.

                     Now select cell A2 and type =A1*2, and press Enter key.

                 In cell A2, the value is 20. If you change the value in cell A1
                 from 10 to any value, the value in cell A2 will also change.
                 Cell references are especially helpful  when  you create
                 complex formulas. There are three types of cell references
                 used in Excel: relative, absolute and mixed.

                 Relative References

                 In relative reference, you actually refer to a cell that is above or below and left or right of a number of
                 rows or columns. Copying a formula with a relative reference from one cell to another also modifies the
                 copied cell's value. To use the relative cell reference, perform the following steps:


                                                                                 2
                         Select another cell in       Click on the Copy button.
                         which you want to copy
                     3   the formula and click
                         on the Paste button.





                           Select the cell that
                           contains the formula
                      1    in which the reference
                           of other cells is used.


                 Absolute References

                 If you wish to maintain the original references as they were, then you should make use of the absolute
                 references. If you want to make the formula retain the original reference when copied, precede the
                 column reference and the row reference by a dollar ($) symbol.

                 For example, if you want to give a discount of 10% on each product, the discount will remain the same
                 for all products. To calculate the amount to be paid, add the dollar ($) sign to the cell that contains the
                 discount percentage. In this case, the discount percentage is given in cell D3. Hence, the formula will
                 be =((B3*C3)-((B3*C3)*($D$3))).











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