How to display total cost value based on two date values

Hi, krishnavzm 

You can try the following methods. Divide your sample data into 2 tables.

Table1:

Table2:

New Table:

Date = CALENDAR(MIN('Table 1'[Dispatch Date]),MAX('Table 2'[Arrival Date]))

Column:

Year = YEAR([Date])

Month = MONTH([Date])

Measure:

Total Actual cost / Monthly =
CALCULATE (
    SUM ( 'Table 2'[Actual Cost] ),
    FILTER (
        ALL ( 'Date' ),
        [Year] = SELECTEDVALUE ( 'Date'[Year] )
            && [Month] = SELECTEDVALUE ( 'Date'[Month] )
    )
)

Total Estimated cost / Monthly =
CALCULATE (
    SUM ( 'Table 1'[Estimated Cost] ),
    FILTER (
        ALL ( 'Date' ),
        [Year] = SELECTEDVALUE ( 'Date'[Year] )
            && [Month] = SELECTEDVALUE ( 'Date'[Month] )
    )
)

Result:

Is this the result you expect?

Best Regards,

Community Support Team _Charlotte

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