When using group pricing each group's price should be set by What two steps'.' {:2- Identify the group's average income or ability to pay= and multiply this by the average share of income spent on this product. {:2- Identify the quantity where the marginal cost equals marginal revenue for each group= and then find the price for that quantity on each group's demand curve. (:2- Dix'ide the demand by the number of segments= and choose the price on the marginal revenue curve associated with each segment's quantity. (:2- Choose the profitmaximizing price according to the rational rule for sellers= and then adjust the price up or down based on the number of segments