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## Calculate total last year in all rows in 1 column

Hello. I want to calculate for example the total amount of the sales from previous year and show this amount in the column 'total sales 2018'.

How can I do this? Thanks for a response.

 Year Total sales Total sales 2018 2017 10000 12500 2018 12500 12500 2019 14000 12500
1 ACCEPTED SOLUTION

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Regular Visitor

## Re: Calculate total last year in all rows in 1 column

Hello!

To calculate the total from distinct periods, we need to use the functions of "time intelligence". For that, we need a "Calendar Table". So, here's what we gotta do:

1- Create a new column in the date format based on your Year;

`NewDate = DATE([Year];1;1)// This will generate a column with the dates "01/01/2017", "01/01/2018", "01/01/2019"`

2- Create a Calendar Table

Using the button "New Table", insert the DAX below:

`Calendar = // Will generate a table called "Calendar", starting on "01/01/2017" and finishing at "01/01/2019"CALENDAR(      MIN(Sales[NewDate]);      MAX(Sales[NewDate]) )`

3- Create a relationship between the "Sales" and "Calendar" tables using the columns Sales[NewDate] (many side) and Calendar[Date] (one side). In this case, the relationship will be "one to one", assuming that we have only one row for each Year in the Sales table.

4- Create the new metric for the total sales amount from previous year:

```Total Sales Previous Year =
CALCULATE(
[Total Sales];
PREVIOUSYEAR('Calendar'[Date])
)```

5- Enjoy

Result Using the "Total Sales Previous Year"

If that solved your issues, remember to mark this as the correct awnser.

And if that's not what you were looking for, let me know and I will do the best to help you again.

2 REPLIES 2
Highlighted
Regular Visitor

## Re: Calculate total last year in all rows in 1 column

Hello!

To calculate the total from distinct periods, we need to use the functions of "time intelligence". For that, we need a "Calendar Table". So, here's what we gotta do:

1- Create a new column in the date format based on your Year;

`NewDate = DATE([Year];1;1)// This will generate a column with the dates "01/01/2017", "01/01/2018", "01/01/2019"`

2- Create a Calendar Table

Using the button "New Table", insert the DAX below:

`Calendar = // Will generate a table called "Calendar", starting on "01/01/2017" and finishing at "01/01/2019"CALENDAR(      MIN(Sales[NewDate]);      MAX(Sales[NewDate]) )`

3- Create a relationship between the "Sales" and "Calendar" tables using the columns Sales[NewDate] (many side) and Calendar[Date] (one side). In this case, the relationship will be "one to one", assuming that we have only one row for each Year in the Sales table.

4- Create the new metric for the total sales amount from previous year:

```Total Sales Previous Year =
CALCULATE(
[Total Sales];
PREVIOUSYEAR('Calendar'[Date])
)```

5- Enjoy

Result Using the "Total Sales Previous Year"

If that solved your issues, remember to mark this as the correct awnser.

And if that's not what you were looking for, let me know and I will do the best to help you again.

Regular Visitor

## Re: Calculate total last year in all rows in 1 column

Thank you very much.

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