I am trying to automate a report showing progress using a stacked bar chart in Power BI, but I stumbled across this:
I need the graph to show the diferrence between the last and the previous weeks, so in case of 'Strategy', for exemple, the blue part should be 36.84%, but the orange should be only 5.27%, thus adding to the 42.11% total.
I could easily do the math in excel, but the point of this report is automate this process. Is there any way I could do that using BI?
You do that via measures that calculate the difference between your values.
Please provide sanitized sample data that fully covers your issue. I cannot help you without usable sample data. Please paste the data into a table in your post or use one of the file services like OneDrive or Google Drive. I cannot use screenshots of your source data. Please show the expected outcome based on the sample data you provided. Screenshots of the expected outcome are ok.