Which day recorded the maximum volume growth compared to previous day

[Anonymous]

Hi All,

Need you help for one of my task.

I want to know Which day recorded the maximum volume growth compared to previous day.

I have added previous day column using 

Date	Total Sales	PreviousDaySales
2/1/2020	235
2/2/2020	142	235
2/3/2020	150	142
2/4/2020	167	150
2/5/2020	141	167
2/6/2020	197	141
2/7/2020	244	197
2/8/2020	254	244
2/9/2020	281	254
2/10/2020	245	281
2/11/2020	195	245
2/12/2020	202	195
2/13/2020	210	202
2/14/2020	118	210
2/15/2020	71	118
2/16/2020	200	71
2/17/2020	148	200
2/18/2020	162	148
2/19/2020	242	162
2/20/2020	279	242
2/21/2020	299	279
2/22/2020	197	299
2/23/2020	187	197
2/24/2020	155	187
2/25/2020	158	155
2/26/2020	142	158
2/27/2020	252	142
2/28/2020	247	252
2/29/2020	270	247
3/1/2020	290	270
3/2/2020	286	290
3/3/2020	132	286
3/4/2020	242	132
3/5/2020	123	242
3/6/2020	128	123
3/7/2020	88	128
3/8/2020	323	88
3/9/2020	255	323
3/10/2020	228	255
3/11/2020	209	228
3/12/2020	195	209

But not sure what will be the next step.

@smpa01 @PowerB @Anonymous 

[v-zhangti]

Hi, @Anonymous 

You can try the following methods.

Measure:

PreviousDaySales = 
Var PrevDate=MAXX(FILTER(ALL('Table'[Date]),'Table'[Date]<SELECTEDVALUE('Table'[Date])),[Date])
Var PreviousDaySales=CALCULATE(SUM('Table'[Total Sales]),FILTER(ALL('Table'),[Date]=PrevDate))
Return
PreviousDaySales

Growth = SUM('Table'[Total Sales])-[PreviousDaySales]

MaxGrowthDate = 
Var MaxGrowth=MAXX('Table',[Growth])
Return
MAXX(FILTER(ALL('Table'),[Growth]=MaxGrowth),[Date])

Best Regards,

Community Support Team _Charlotte

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[Anonymous]

Thank you for your reply. it workes for me!!!

[tamerj1 · Accepted solution]

Hi @Anonymous 
Please refer to sample file with the proposed solution. I assumed that the presented data is aggregated at day level, therefore the measure is built from scratch

Max Date Growth = 
VAR T1 = 
    ADDCOLUMNS ( 
        VALUES ( Data[Date] ),
        "@Total",
        CALCULATE ( SUM ( Data[Total ] ) ),
        "@Previous",
        VAR CurrentDate = Data[Date]
        VAR CurrentValue = CALCULATE ( SUM ( Data[Total ] ) )
        RETURN 
            CALCULATE ( SUM ( Data[Total ] ), Data[Date] = CurrentDate - 1 )
    )
VAR T2 = FILTER ( T1, [@Previous] <> BLANK ( ) )
VAR T3 = ADDCOLUMNS ( T2, "@Growth", [@Total] - [@Previous] )
VAR T4 = TOPN ( 1, T3, [@Growth] )
RETURN
    MAXX ( T4, [Date] )

[PaulOlding]

Hi @Anonymous 

Here's a measure that uses the TOPN function to find the largest volume growth

Date with Max Volume Growth = 
MAXX(
	TOPN(1, 
		FILTER('Table', NOT ISBLANK('Table'[PreviousDaySales])), 
		'Table'[Total Sales] - 'Table'[PreviousDaySales], DESC
		),
	'Table'[Date]
	)

The FILTER makes sure it doesn't return the first date in the data (that has no previous day sales).  The MAXX will get the latest date in the event there's more than 1 date with the largest volume growth.  You could use MINX if you wanted the earliest instead.