It mean's If you sale price is 100,2.9 percent + 0.3 paypal 3.210 percent donate 10if 13 percent ebay fee 13 donate reduce rate: 0.1 of 13 1.3if mailing fee 6 if Sale Tax 6 percent 6 Totally Cost 3.2 +10+13-1.3+6 +6 36.9finally you get 100-36.9 63.1