Hi, it is a good plot. Honest constructive feedback: The aesthetics could be made slightly better, layout be polished somewhat (yes even with Excel a lot btw). E.g. maybe contract the x-axis somewhat etc. But overall it is a completely logical and good idea to plot and also clearly understandable. In economics, scientists are literally interested seeing the exact impact variable x has on variable y (sometimes termed elasticity when measured as % over %). Also plotting the variables against each other like this may be called a "phase portrait", for everyone asking why to do it this way. Keep going!