I'm a big proponent of data..."if you can't measure it, you can't manage it", "In God we trust...all others bring data", etc.
There's a lot of lagging indicators on the impact Covid-19 has had on the restaurant industry, and I've included a link for an article that has some great details...
https://www.eater.com/2020/3/24/21184301/restaurant-industry-data-impact-covid-19-coronavirus