Assume that a price floor of $$320$ has been implemented and there are no wasteful quality improvements. What are the total gains from trade $($total surplus$)$ with a price floor of $$320?$ Assume that a price floor of $$320$ has been implemented and there are no wasteful quality improvements. What is the deadweight loss associated with a price floor of $$320?$ Assume that a price floor of $$320$ has been implemented and there are wasteful quality improvements. What is the value of wasteful quality improvements associated with a price floor of $$320?$