The world-famous discounter, fernwood booksellers, specializes in selling paperbacks for $7 each. the variable cost per book is $5. at current annual sales of 200,000 books, the publisher is just breaking even. it is estimated that if the authors' royalties are reduced, the variable cost per book will drop by $1. assume authors' royalties are reduced and sales remain constant; how much more money can the publisher put into advertising (a fixed cost) and still break even?