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∆  
                                                          
                 National           savings        APS=                 ∆          ∆S              MPS=
                 income                                                                                  ∆  


                 1000               500            500   = 0.5     -------         --------        --------
                                                   1000


                 2000               800            800   = 0.4     1000            300             300  = 0.3
                                                   2000                                            1000




               Diagrammatic: presentation pf APS and MPS: -            Y

               In the given diagram: -



                                            1                                                                S
               At point A, APS =   =                                                             B
                                            1                      2

                                                                                        A
                                                                   1
                                            2
               At point B, APS =   =
                                            2                     O                                                X
                                                                                          !
                                                                −                                   
                                                                                                   2
                                                                    

                                                                                       ∆         
                                                                                             1 2
               When the economy moves from point A to Point B then MPS =   =
                                                                                       ∆         
                                                                                             1 2
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