Historical Data TIMELINER Help Request!

Hi all!

I am looking for help in building the following in a Power BI report. 

I would like to be able to show how the data has evolved in time. For instance in a case op people filling in a form. (Source is Excel)

on 1st of January 30% has filled in and 70% has not. 

on 1st of February 45% has filled in and 55% had not. 

In the dashboard I currently am only able to see the status of the excelsheet as it is at the moment. I would like to insert a timeliner to see the percentages in the days/weeks before.

Can anyone help me with this?

Greetings, 

Tom