$(2)$ Stan found that among the test sample $(50,000$ customers$),$ the percentage of those who were above the breakeven response rate was $46\mathrm{.}54\%.$ Of those who are above the breakeven response rate, the actual response rate was around $14\mathrm{.}05\%.$ If Stan extends this campaign out to the entire remaining sample, what is the expected profits that he would earn and return on marketing? This $50,000$ test sample was a random pull from the entire customer base, so we would somewhat expect the results to generalize.