Combining attributes of point data within buffer using QGIS?

I have city data broken down into intersections and roads. Around each intersection, I have created a buffer. I also have parcel data, including the attribute "gross tax 2015" for each parcel. I would like to assign each parcel intersecting a buffer to that intersection- and then analyze the total tax information for each intersection (there is more than one parcel in each buffer). I have been able to create the buffer, and can visually see the parcels in each buffer, but can't seem to get an attribute table that shows to which intersection each parcel is assigned. Furthermore, a parcel may reside in more than one buffer. Is there any way to get the percent area of each parcel in each buffer?

I am using QGIS 2.8.6