Change From Previous

mgirvin

Well-known Member
Joined
Dec 15, 2005
Messages
1,236
Office Version
  1. 365
Platform
  1. Windows
Dear Team,

I have a table of dates and GE Stock Prices. I would like a Calculated Column that calculates the change in stock value day by day. THE DAX I have created is this:

Calculated Column for Change in GE Stock Prom Previous =

IF (
MIN ( GEPrices[Date] ) = GEPrices[Date],
BLANK (),
GEPrices[GE Close]
- LOOKUPVALUE (
GEPrices[GE Close],
GEPrices[Date], MAXX (
FILTER ( ALL ( GEPrices[Date] ), GEPrices[Date] < EARLIER ( GEPrices[Date] ) ),
GEPrices[Date]
)
)
)

The table I have is this:


Date GE Close
3/8/19 9.58
3/11/19 9.9
3/12/19 9.76
3/13/19 10.02
3/14/19 10.3
3/15/19 9.96
3/18/19 10.2
3/19/19 10.19
3/20/19 10.22
3/21/19 10.27
3/22/19 9.98
3/25/19 9.88
3/26/19 10.1
3/27/19 9.96
3/28/19 9.89
3/29/19 9.99
4/1/19 10.1
4/2/19 10.24
4/3/19 10.1
4/4/19 10.03
4/8/19 9.49

Is this an efficient formula? Is there a better way to do this?
 

Excel Facts

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Prevent GETPIVOTDATA. Select inside a PivotTable. In the Analyze tab of the ribbon, open the dropown next to Options and turn it off
Don't know about efficiency, but this seems more intuitive to me

Code:
=IF(MIN( GEPrices[Date] ) = GEPrices[Date],
    BLANK(),
    GEPrices[GE Close] - LOOKUPVALUE ( GEPrices[GE Close],
                                       GEPrices[Date],
                                       GEPrices[Date]-IF(WEEKDAY(GEPrices[Date],1) = 2,
                                                         3,
                                                         1
                                                        )
                                     )
   )
 
Upvote 0
Thank you, theBardd. That is straight forward and clever : ) That does work for the pattern shown in the data set, but stock price dates do not always follow that pattern.
 
Upvote 0

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