Page 44 - TX_Marketing 2_M1_v2
P. 44

15%
                               20%          Blue                                     Blue
                    40%                     Red
                                                              15%                    Red
                                            Yellow                                   Yellow
                                  20%                                     65%
                                            Turquoise                                Turquoise
                                                           5%
                           20%


               In general, pie charts are best used when your data implicitly carries a part/whole

               relationship (like in the case of many percentages) and when the point of the data is

               to illustrate the "make-up" of a single group. This is because any given group will
               require its own chart. If you have three "groups," then it might be advantageous to

               consider a bar graph. To illustrate this point, let's plot all the percentages from all

               three companies, which necessitated three pie charts, on one bar graph.


               Company A, Company B, and Company C's Favorite Colors



                    100.00%
                     90.00%
                     80.00%
                     70.00%                                                                    Blue
                     60.00%
                     50.00%                                                                    Red
                     40.00%                                                                    Yellow
                     30.00%                                                                    Turquoise
                     20.00%
                     10.00%
                      0.00%
                                  Company A          Company B          Company C


               Pie charts are also unable to represent data that does not implicitly carry a

               part/whole relationship. For example, you want to demonstrate the average cost of

               buying a home in the U.S. over the course of the 1980s.




                                                                 TX Marketing II: Negotiation Techniques         43
   39   40   41   42   43   44   45   46   47   48   49