PM for COVID-19 information portal. What are the goals you will set for the team. How will you evaluate showing this message vs ad ? #of visitors to the portal dropped by 50% in a day. Follow up- would your answer change if we see the same drop in a year?

PM for COVID-19 information portal. What are the goals you will set for the team. How will you evaluate showing this message vs ad ? #of visitors to the portal dropped by 50% in a day. Follow up- would your answer change if we see the same drop in a year?