Formula calculation to find percentage calculation of one location from 5 different locations which are not older than last 30 days, which shows the result as "#Unparseable "
=ROUND(COUNTIF(City:City, "A") / (COUNTIF(City:City, "A") + COUNTIF(City:City, "B") + COUNTIF(City:City, "C") + COUNTIF(City:City, "D") + COUNTIF(City:City, "E") + COUNTIF(City:City, "F")) * 100, 2 ,(Reported:Reported, >=TODAY(-30)),