The term 'running total' is used to describe a cumulative sum of a series of numbers. It is often used in accounting and bookkeeping to keep track of the total amount of money that has been spent or earned over a period of time. The two crossword solutions for this term are 'TALLY' (5 letters) and 'TAB' (3 letters). TALLY is a method of counting or keeping track of something, usually by making marks on a surface. TAB is a record of expenses or payments, usually kept in a ledger or spreadsheet.