cumulativesum
nounUK /ˈkjuːmjələtɪv sʌm/
US /ˈkjuːmjəleɪtɪv sʌm/
A cumulative sum is the total you get when you keep adding numbers together one by one.
The cumulative sum of 2, 3, and 5 is 10.
RELATED WORDS
OTHER MEANINGS
2. In math, the sequence of partial sums formed as each new term is added to the previous total.
The cumulative sums of the sequence 1, 2, 3 are 1, 3, and 6.
3. In finance, the total amount accumulated over time, such as interest added to a balance.
The cumulative sum of her savings grew each month with interest.
4. In data analysis, a running total used to track changes across a list of values.
The spreadsheet shows the cumulative sum of daily sales.