Total count in a period

[LangeJan]

Hi
I would like to count the total number of customers, so I can show that i 2019 we had 6 customers and in 2020 we had 7 customers and so on. Which function is the right one to choose for that?

I dosnt work for me to use DISTINCTCOUNT or TOTALYTD

My data looks like this.

CustNumber	CompanyName	CreatedDate
98	Very Old Company	01-01-1983
99	Older Company	01-01-1993
100	Old Company	01-01-2003
101	Walmart Inc. (WMT)	01-08-2019
102	China Petroleum & Chemical Corp. (SNP)	01-09-2019
103	Amazon.com Inc. (AMZN)	01-10-2019
104	PetroChina Co. Ltd. (PTR)	01-04-2020
105	Apple Inc. (AAPL)	01-02-2021
106	CVS Health Corp. (CVS)	02-02-2021
107	Royal Dutch Shell PLC (RDS. A)	01-05-2022
108	Berkshire Hathaway Inc. (BRK. A)	01-06-2022
109	Toyota Motor Corp. (TM)	01-07-2022
110	Volkswagen AG (VWAGY)	01-08-2022

What I would like to show is:

Year	Total Number of Customers Created	Net increase compared to last year
2019	6
2020	7	1
2021	9	2
2022	13	4

Thank you

[LangeJan]

@MFelix Thanks a lot. Your reply solved my problem.

[MFelix · Accepted solution]

Hi @LangeJan ,

Create the following two measures:

Cumulative customers = CALCULATE(DISTINCTCOUNT('Table'[CustNumber]), 'Table'[year]<= MAX('Table'[year]))

var cumulative =
[Cumulative customers]
    - CALCULATE ( [Cumulative customers], 'Table'[year] = MAX ( 'Table'[year] ) - 1 )