Book Sale

So, you drive out to the bookstore to buy a softcover for 15 bucks (approx 16.30 USD with 9% tax). When done, sell it through Amazon for 6 bucks, but buyer pays extra 3.99 USD shipping. Pass on the 3.99 USD to the post office, but this is California, so you drive out to the post office. Of course, your click bait friends get 60 cents from your book sale. Deduct 1.35 USD Amazon closing fee, deduct another 99 cents per listing fee. Game over, everyone loses, except for this guy, . . .