Abstract: A computing device (e.g., a processor executing instructions on the computing device) receives an input (e.g., from a user or from a data stream) into a cell of a table (e.g., a cell of a spreadsheet, worksheet, or workbook). If the input is a sum (e.g., a formula whose result is the sum of previous cells), then the computing device renders a total column representing the sum on a waterfall chart (e.g., on a user interface rendered on an electronic display). Otherwise, if the input is a static value (e.g., an integer or decimal number), then the computing device renders a change column representing the static value.