Data is updated daily at 6 pm EST. Source: https://covidtracking.com/data
First number is daily new cases. The second number - denoted by (plus or minus) sign show change in cases from 14 days ago. In the bracket, we can also see the same change as a %. More cases compared to 14 days ago doesn't mean that things are very bad - click for details and check all trends such as cases, deaths, number of tests, positivity and hospitalization to determine whether the state should be alarmed or not. Also, check the hotspots at county level on the same link to understand areas with high prevalence of COVID-19.