analytics problem

For reasons he has refused to divulge, Stu has conducted a conjoint study of automobile preferences in his Afton, Virginia neighborhood. The well-respected marketing research firm of RonPaul ran the study using sophisticated software which generated the following table of utilities. What is the approximate dollar value of a change in utility of 1.00 based on the given price ranges? [Note: Use the high and low levels of price provided for your calculations] dollars