Comparison after outsourcing

Friends.

I have two dimensions: cost center and outsourced cost center.
The first lists the cost centers and their names and the other lists the cost centers that were outsourced and the day of outsourcing.

I wanted to put together a visual where I could compare the cost after outsourcing.

I imagined a line and stacked column chart or any other, I accept suggestions. Where the Axis would be the dCalendar and the cost values ​​the lines.

I'm not able to assemble a measure that using the data slicer makes a comparison between the values ​​before and after outsourcing. Can you give me strength?