Measuring Consumer Surplus with the demand curve Price of Price=$70 Album $100 HJohn's consumer surplus($30) 80 Pauls consumer surplus(10) 70 50 Total consumer surplus($40) Demand 0 2 4 Q quantity of AlbumsPrice of Album 50 70 80 0 $100 1 2 3 4 Quantity of Albums Demand John’s consumer surplus ($30) Total consumer surplus ($40) Price = $70 Paul’s consumer surplus ($10) Measuring Consumer Surplus with the Demand Curve