How to change measure value using parameters?

rajdsing   You cannot have a dropdown but you can use slicers or filters to change the calculations on chart.

You need to create a table that hols the values which you want to show in the slicer

Calculation Name	SortID
Cost	1
Quantity	2
Weight	3

 The SortID is there for sorting the values in slicer as also use it to change the calculation.

The calculations are fictional, change it to your own measures. No relantionship is needed betwwen the calculation name table and any other.

The measure can be like this

Variable Calculation =
VAR Costs =
    SUM ( Sales[Cost] ) //Change with your measure 

VAR Quantitys =
    SUM ( Sales[Quantity] ) //Change with your measure 

VAR Weights =
    SUM ( Sales[Weight] ) //Change with your measure 

VAR SelectMeasure =
    MIN ( CalculationTable[SortID] )

RETURN
    IF (
        HASONEVALUE ( CalculationTable[Calculation Name] );
        
               SWITCH ( SelectMeasure; 
                                            1; Costs;
                                            2; Quantitys; 
                                            3; Weights 
                               )
    )

Add the [Variable Calculation] measure  to any graph and add as filter of slicer the values from the table Calculation Names.

This should work

*Note that you cannot change the format based on selection ( at least not I am aware of )