... “rise-over-run” using the y-axis intercept and that point. For this calculation myline intersected the June data at point ( $13, 500, $15,500) so my rise was $11,500($4,000 to $15,500 in Total Cost) and my ... buying books in large quantity from publishers, warehousingthem, and selling in smaller quantities to bookstores. Of course, the last pieceis the bookstore, where in- store promotion and the final ... $13, 500 ($0 to $13, 500 in Revenue).The slope, therefore, was $11,500/ $13, 500 or 85.2%.10. To avoid this shortcoming, many analysts first plot the data and then selecthigh and low data points...