Last year ratio calculation

[pwc_ananta]

Need help in a meausre to calculate last year ratio when user slelect period from slicer. 

currently using this measure as 

Current Ratio LY =

var years = MAX(GL_BALANCES[PERIOD_YEAR])-1

var period_selected =SELECTEDVALUE(GL_BALANCES[PERIOD_NAME])

var years2 = CALCULATE(max(GL_PERIODS[PERIOD_YEAR]),GL_BALANCES[PERIOD_NAME]=period_selected)-1

Var Result = calculate( GL_BALANCES[Total Current Asset] / GL_BALANCES[Total Current Liability],GL_BALANCES[PERIOD_YEAR]=years2)

return Result
result is showing blank in this measure.

when i use years2-1 it shows blank value. 
Thanks In Advance. 

[amitchandak]

,In such cases better to have a separate date/year period table with numeric year and period

This Period = CALCULATE(sum('Table'[Qty]), FILTER(ALL(Period),'Period'[Year]=max('Period'[Year]) && Period[Period]=max(Period[Period])))
Last year same Period = CALCULATE(sum('Table'[Qty]), FILTER(ALL(Period),'Period'[Year]=max('Period'[Year])-1 && Period[Period]=max(Period[Period])))

But if you need this period vs last period

you need have period rank on YYYYPP

New column on Date/period Table

Period Rank = RANKX(all(Period),Period[year period],,ASC,Dense)

Measures
This Period = CALCULATE(sum('Table'[Qty]), FILTER(ALL(Period),Period[Period Rank]=max(Period[Period Rank])))
Last Period = CALCULATE(sum('Table'[Qty]), FILTER(ALL(Period),Period[Period Rank]=max(Period[Period Rank])-1))

@pwc_ananta

[pwc_ananta]

pls check the scnerio, only slection of period come up with blank, even its calculating year  correct , but when i subtruct 1 from year of period it contains blank in measure.

[pwc_ananta]

Let me clear scenrio, I am having GL balance , Period year as 2022,period_name as Jun-21-22 and I have put Period_name in slicer, when user select period I calculate period year from it as year = calculate (max(period_year),period_name=selected_period) it return me the year then what I do, I subtruct 1 from calculated year.... 
After that I pass that year to measure for calcualtion as above. 
the issue is when user select from slicer it narrow downs the data to that period_selection only. 
now pls help to cater the data from previous year on selection. 

[amitchandak]

@pwc_ananta , You need to have separate period /date table with sortable Year, Period, and Year Period(YYYYPP) and Year Period Rank

where Period Rank column is

Period Rank = RANKX(all(Period),Period[year period],,ASC,Dense)

This Period = CALCULATE(sum('Table'[Qty]), FILTER(ALL(Period),Period[Period Rank]=max(Period[Period Rank])))
Last Period = CALCULATE(sum('Table'[Qty]), FILTER(ALL(Period),Period[Period Rank]=max(Period[Period Rank])-1))

This Period = CALCULATE(sum('Table'[Qty]), FILTER(ALL(Period),'Period'[Year]=max('Period'[Year]) && Period[Period]=max(Period[Period])))
Last year same Period = CALCULATE(sum('Table'[Qty]), FILTER(ALL(Period),'Period'[Year]=max('Period'[Year])-1 && Period[Period]=max(Period[Period])))

New column  if needed

Period Day =datediff([Period Start date] , [Date],Day) +1

PTD = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Period Rank]=max('Date'[Period Rank]) && [Period Day] <=max([Period Day])))
LPTD = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Period Rank]=max('Date'[Period Rank])-1 && [Period Day] <=max([Period Day])))

Time Intelligence, DATESMTD, DATESQTD, DATESYTD, Week On Week, Week Till Date, Custom Period on Period,
Custom Period till date: https://youtu.be/aU2aKbnHuWs&t=145s

[pwc_ananta · Accepted solution]

I have found a solution let me explain it to you, 
When we want to bypass a slicer we will use all filter. 

CALCULATE([Inv.],All(GL_BALANCES),ALL(QP_REPORT_MAPPING) , GL_BALANCES[PERIOD_YEAR]=SELECTEDVALUE(GL_BALANCES[PERIOD_YEAR]),GL_BALANCES[PERIOD_NUM]=1)