Consumers' and Producers' Surplus 1. Given the inverse supply function P=(Q+3)2, find the change in producers' surplus PS at R, = 8 to P = 10. . Given the demand function Pd = 80 ZQand the supply function = 2Q+1 . Assuming perfect competition, nd (a) the consumers' surplus and (b) the producers' surplus. . Given the demand function: Q = 2000 P213, find the change in consumer surplus as the price falls from $8 to $4. . Given the supply function: Q = 10+ P2, find the change in producer surplus as the price rises from $10 to $15