How do I use Previous function in SSRS

Question

I'm working on SSRS report. There are two main fields `CurrentMV` and `PreviousMV` both are having there different formulas but I need to change field `PreviousMV` to take a value of `CurrentMV` but `previous date` value I'm trying using `Previous` function of SSRS please help me. field `CurrentMV` having expression like `=Sum(Fields!CurrentMV.Value)`

Accepted Answer

You should be able to use:

```
=Previous(Sum(Fields!CurrentMV.Value))
```

Or

```
=Previous(Sum(Fields!CurrentMV.Value, "Detail"), "Detail")
```

How do I use Previous function in SSRS

Solution

Problem