I have three SharePoint lists. The first collects data by neighborhood for active cases and the second collects data by village for swabs. The third is where all the numbers get added together. Each day numbers are inputted and I want to add them to the previous day. So basically every time a village gets added into the COVID Numbers SharePoint list I want to total those numbers for each village and then add them together with the previous number in the Total SharePoint list. I want a constant running total of cases for each village when they are in outbreak.