Perpetual balance of last 12 months

[Anonymous]

Hi All,

Assume I have data Years, Month, Year-Month and monthly total. I need to generate Running Balance and show in a line chart for last twelve months only dimension being Year-Month. I want to it by calculated dimension or expression and not by Load Script.

Dimension being Year-Month, say if I select 2016-Aug or nothing (max date is 2016-Aug) it shows only balance of last 12 months as bold and underlined below in line chart.

There is a lot on community about running total for items like sales but not for balances.

Years	Month	Year-Month	Monthly Total	Running Balance
2011	Apr	2011-Apr	25,404.42	25,404.42
2011	May	2011-May	40,000.00	65,404.42
2011	Aug	2011-Aug	(33,878.00)	31,526.42
2011	Sep	2011-Sep	24,828.00	56,354.42
2011	Oct	2011-Oct	27,659.00	84,013.42
2011	Nov	2011-Nov	622,985.00	706,998.42
2011	Dec	2011-Dec	(535,235.00)	171,763.42
2012	Jan	2012-Jan	605,478.63	777,242.05
2012	Feb	2012-Feb	(59,846.00)	717,396.05
2012	Mar	2012-Mar	852,261.00	1,569,657.05
2012	Apr	2012-Apr	(231,166.28)	1,338,490.77
2012	May	2012-May	(914,644.77)	423,846.00
2012	Jun	2012-Jun	1,039,404.50	1,463,250.50
2012	Jul	2012-Jul	(516,720.00)	946,530.50
2012	Aug	2012-Aug	(697,555.00)	248,975.50
2012	Sep	2012-Sep	996,473.83	1,245,449.33
2012	Oct	2012-Oct	(1,280,586.00)	(35,136.67)
2012	Nov	2012-Nov	176,962.23	141,825.56
2012	Dec	2012-Dec	108,276.43	250,101.99
2013	Jan	2013-Jan	556,708.13	806,810.12
2013	Feb	2013-Feb	(33,359.93)	773,450.19
2013	Mar	2013-Mar	2,242,339.30	3,015,789.49
2013	Apr	2013-Apr	(2,572,329.93)	443,459.56
2013	May	2013-May	641,304.16	1,084,763.72
2013	Jun	2013-Jun	(174,705.01)	910,058.71
2013	Jul	2013-Jul	(586,326.93)	323,731.78
2013	Aug	2013-Aug	(135,315.58)	188,416.20
2013	Sep	2013-Sep	958,848.14	1,147,264.34
2013	Oct	2013-Oct	(867,631.37)	279,632.97
2013	Nov	2013-Nov	614,080.88	893,713.85
2013	Dec	2013-Dec	2,314,386.34	3,208,100.19
2014	Jan	2014-Jan	(2,619,150.91)	588,949.28
2014	Feb	2014-Feb	(144,468.15)	444,481.13
2014	Mar	2014-Mar	503,287.58	947,768.71
2014	Apr	2014-Apr	86,137.75	1,033,906.46
2014	May	2014-May	463,865.87	1,497,772.33
2014	Jun	2014-Jun	194,257.58	1,692,029.91
2014	Jul	2014-Jul	213,899.17	1,905,929.08
2014	Aug	2014-Aug	(1,013,526.27)	892,402.81
2014	Sep	2014-Sep	1,652,219.75	2,544,622.56
2014	Oct	2014-Oct	39,757.18	2,584,379.74
2014	Nov	2014-Nov	(1,512,779.20)	1,071,600.54
2014	Dec	2014-Dec	222,894.58	1,294,495.12
2015	Jan	2015-Jan	420,897.14	1,715,392.26
2015	Feb	2015-Feb	(255,912.76)	1,459,479.50
2015	Mar	2015-Mar	798,877.48	2,258,356.98
2015	Apr	2015-Apr	1,094,760.95	3,353,117.93
2015	May	2015-May	(2,047,749.50)	1,305,368.43
2015	Jun	2015-Jun	(241,750.26)	1,063,618.17
2015	Jul	2015-Jul	216,308.64	1,279,926.81
2015	Aug	2015-Aug	938,838.14	2,218,764.95
2015	Sep	2015-Sep	(97,655.82)	2,121,109.13
2015	Oct	2015-Oct	(919,803.16)	1,201,305.97
2015	Nov	2015-Nov	(98,464.46)	1,102,841.51
2015	Dec	2015-Dec	16,226.97	1,119,068.48
2016	Jan	2016-Jan	(471,800.01)	647,268.47
2016	Feb	2016-Feb	(306,240.94)	341,027.53
2016	Mar	2016-Mar	250,778.16	591,805.69
2016	Apr	2016-Apr	441,462.42	1,033,268.11
2016	May	2016-May	(481,035.60)	552,232.51
2016	Jun	2016-Jun	217,556.80	769,789.31
2016	Jul	2016-Jul	240,403.90	1,010,193.21
2016	Aug	2016-Aug	(27,901.00)	982,292.21

Thanks

Shoaib

hic‌ johnw‌ stevedark‌

[sunny_talwar · Accepted solution]

Try this:

RangeSum(Above(TOTAL Sum({1}[Monthly Total]), 0, RowNo(TOTAL))) * Avg({<[Year-Month] = {"$(='>' & Date(AddMonths(Max([Year-Month]), -12), 'YYYY-MMM') & '<=' & Date(Max([Year-Month]), 'YYYY-MMM'))"}, Year, Month>} 1)

[Anonymous]

Thanks a ton Sunny! It's working great. But can you please explain your trick to multiply Rangesum with Avg? Rangesum is explained well in some blogs and I tried it but the real trick you did here is multiplication with Avg. I am not getting it.

RangeSum(Above(TOTAL Sum({1}[Monthly Total]), 0, RowNo(TOTAL))) * Avg ({<[Year-Month] = {"$(='>' & Date(AddMonths(Max([Year-Month]), -12), 'YYYY-MMM') & '<=' & Date(Max([Year-Month]), 'YYYY-MMM'))"}, Years, Month>} 1)

[Anonymous]

OK, I got your trick. Great!

[sunny_talwar]

I will take some time out later on to explain this in detail. Until then, take a leap of faith and continue using this

[sunny_talwar]

Awesome, I am glad you tried