# Median/Average based on a range within a filtered list

#### coloray13

##### New Member
I am having an issue finding the right formula to calculate the median/average correctly. I have a number of sales that I filter and need to calculate the median and average for each month, which also changes. As of now, I have tried numerous nested formulas and the Median IF Array formula is the closest one that works with the blank cells, the #NA cells, and/or the #VALUE cells in the filtered list, but it still is not correct.

Here is what I am trying to accomplish:
1. count the number of sales in month 0 (in this case, there is only 1, not 3 - see attached photo)
2. count the number of sales in months 1 thru 24 (aka months back)
3. count the rest of the sales in months 25+
4. get the median and averages for those sales (i.e. if 5 sales sold last month, what is the median of those 5 sales)

The green column in the photo is known to be correct, which is how I know my computations are not.

I have tried AGGREGATE, MEDIANIF, etc.

Any help is greatly appreciated!

#### Attachments

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#### JamesCanale

##### Active Member
I made up what I guess your input data looks like. And instead of going to 25, I only went to 9 or more months back.

MrExcelPlayground2.xlsx
ABCDEFG
1Date of SaleAmountMonths backcountmedianaverage
26/1/2020\$ 3,7170513431657
36/6/2020\$ 4,5911725132585.429
46/8/2020\$ 4,3412831842974.125
56/15/2020\$ 2,9433719242603
66/22/2020\$ 4,4274923872751.667
76/29/2020\$ 2,008582401.52743
87/1/2020\$ 1,8296103666.53390.3
97/7/2020\$ 1,1417737103676.571
107/10/2020\$ 3,0448832863133.25
117/15/2020\$ 1,5939 or more122993.52944.5
127/21/2020\$ 2,118
137/25/2020\$ 3,582
148/1/2020\$ 1,426
158/4/2020\$ 3,576
168/9/2020\$ 2,363
178/9/2020\$ 2,848
188/11/2020\$ 3,200
198/18/2020\$ 3,372
208/24/2020\$ 4,270
218/29/2020\$ 4,011
229/4/2020\$ 4,809
239/10/2020\$ 2,416
249/12/2020\$ 3,710
259/15/2020\$ 3,570
269/22/2020\$ 3,798
279/27/2020\$ 4,130
289/28/2020\$ 3,303
2910/2/2020\$ 2,543
3010/3/2020\$ 4,340
3110/7/2020\$ 4,855
3210/11/2020\$ 2,119
3310/16/2020\$ 2,605
3410/22/2020\$ 3,511
3510/22/2020\$ 1,149
3610/22/2020\$ 4,698
3710/28/2020\$ 3,822
3810/29/2020\$ 4,261
3911/1/2020\$ 2,272
4011/3/2020\$ 4,538
4111/10/2020\$ 2,035
4211/14/2020\$ 2,916
4311/17/2020\$ 2,531
4411/21/2020\$ 3,563
4511/27/2020\$ 1,908
4611/28/2020\$ 2,181
4712/2/2020\$ 4,809
4812/2/2020\$ 1,001
4912/3/2020\$ 1,893
5012/9/2020\$ 3,601
5112/15/2020\$ 1,138
5212/15/2020\$ 3,310
5312/21/2020\$ 4,431
5412/25/2020\$ 2,387
5512/29/2020\$ 2,195
561/1/2021\$ 1,376
571/5/2021\$ 1,260
581/7/2021\$ 3,856
591/14/2021\$ 1,924
601/21/2021\$ 3,545
611/26/2021\$ 1,460
621/26/2021\$ 4,800
632/1/2021\$ 3,663
642/8/2021\$ 1,604
652/9/2021\$ 3,302
662/12/2021\$ 4,313
672/15/2021\$ 4,150
682/18/2021\$ 1,253
692/22/2021\$ 2,442
702/28/2021\$ 3,066
713/6/2021\$ 3,291
723/7/2021\$ 2,513
733/13/2021\$ 2,365
743/16/2021\$ 3,497
753/21/2021\$ 2,292
763/24/2021\$ 2,976
773/29/2021\$ 1,164
784/3/2021\$ 1,159
794/4/2021\$ 1,479
804/9/2021\$ 1,342
814/10/2021\$ 2,962
824/17/2021\$ 1,343
Sheet2
Cell Formulas
RangeFormula
E2:E10E2=SUMPRODUCT(--(YEAR(TODAY())*12+MONTH(TODAY())-(YEAR(\$A\$2:\$A\$82)*12+MONTH(\$A\$2:\$A\$82))=D2))
F2:F10F2=MEDIAN(IF((YEAR(TODAY())*12+MONTH(TODAY())-(YEAR(\$A\$2:\$A\$82)*12+MONTH(\$A\$2:\$A\$82))=D2),\$B\$2:\$B\$82,""))
G2:G10G2=AVERAGE(IF((YEAR(TODAY())*12+MONTH(TODAY())-(YEAR(\$A\$2:\$A\$82)*12+MONTH(\$A\$2:\$A\$82))=D2),\$B\$2:\$B\$82,""))
E11E11=SUMPRODUCT(--(YEAR(TODAY())*12+MONTH(TODAY())-(YEAR(\$A\$2:\$A\$82)*12+MONTH(\$A\$2:\$A\$82))>8))
F11F11=MEDIAN(IF((YEAR(TODAY())*12+MONTH(TODAY())-(YEAR(\$A\$2:\$A\$82)*12+MONTH(\$A\$2:\$A\$82))>8),\$B\$2:\$B\$82,""))
G11G11=AVERAGE(IF((YEAR(TODAY())*12+MONTH(TODAY())-(YEAR(\$A\$2:\$A\$82)*12+MONTH(\$A\$2:\$A\$82))>8),\$B\$2:\$B\$82,""))

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