Query regarding time intelligence function

[SushainKoul]

No.	Measure	Thoughts
1	% of previous quarter	For each quarter, what percentage the total quantity sold constitutes of the same figure for the previous quarter.
2	YTD % of all previous year	For each time period, the cumulative year-to-date figure divided by total quantity sold for the whole of the previous year.
3	3-month moving average	The average of the total quantity sold for the previous 3 months.

In the first figure, this is the table I need to work on in Power BI. I am already given this table.

In the above table, I need to create three measures whose names are given as mentioned. I did the second measure perfectly but I am facing problem in creating first and third measure. Anyone plz help with this and kindly tell me what DAX formula I should use so that I can create these measures. Your help will be highly appreciated.

Thank u in advance.

[amitchandak]

@SushainKoul , with help from the date table and time intelligence

QTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD(('Date'[Date])))
Last QTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD(dateadd('Date'[Date],-1,QUARTER)))

Last Year same QTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD(dateadd('Date'[Date],-4,QUARTER)))

YTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESYTD('Date'[Date],"12/31"))
Last YTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESYTD(dateadd('Date'[Date],-1,Year),"12/31"))

Rolling 3 = CALCULATE(sum(Sales[Sales Amount]),DATESINPERIOD('Date'[Date ],MAX('Date'[Date]),-3,MONTH))
Rolling 3 before 3 = CALCULATE(sum(Sales[Sales Amount]),DATESINPERIOD('Date'[Date ],MAXX('Date',dateadd('Date'[Date],-3,month)),-3,MONTH))

You can take diff

Can you share sample data and sample output in table format? Or a sample pbix after removing sensitive data.

[SushainKoul]

Sir, In all the expressions where u have mentioned DATESADD function its showing some sort of error as I had also tried using DATESADD but didn't get the desired result. 

[SushainKoul]

Here is the output sir.