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cmajewski's avatar
cmajewski
Frequent Visitor
6 years ago
Solved

Calculating response rate for multiple entities

So have have the following survey data:     I know the number of possible respondents for each company but that data is not in the table, so how can I calcuale the response rate?
  • JarroVGIT's avatar
    6 years ago

    If the data is in a different table, then you can add a relationship between Company name columns of both tables. Do make sure you have unique Companynames and every name only occurs once in the second table. 

    Once you have that relationship, you can calculate it by creating a measure or calculated column in the second table (the table with the amount of surveys sent out per company). 

    I've recreated the situation with the following tables:

    Table 1 - Survey responses per respondee which captures also the company of the respondee.Table 2: ALl companies with total of sent out surveys

    PowerBI recognizes de relationship immediately; a 1-to-many relationship between the Company column.

    We are now going to add a calculated column to the SurveysSent table to calculate the response rate per company. The formula is

     

    ResponseRate = COUNTROWS(RELATEDTABLE(Responses))/SurveysSent[Sent]

     

    The rows in table Responses are filtered because I used the RELATEDTABLE expression; it returns only the applicable rows in the related table. In this case, because this is evaluated for every row in SurveysSent, it filters on the company name. This result in the following table (from Data view):

    Table with an additional calculated column

    You could also create a dimension in a similar fashion, but this does the trick as well. The benefit of using a measure is that you can use slices in your report to filter out specific respones in calculating your response rate. 

     

    Kind regards

    Djerro123

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