We have created sample data containing sales of 6 different companies in four consecutive months (from January to April). The Total Sales sheet represents the total number of sales in all four months ...

There are some situations when you need to sum up the time in Excel. Let’s say, you have worked on a particular project at different time intervals for a week. To calculate your wages, you need to add ...

SUM is the spreadsheet equivalent of an open invite: it welcomes everything into the total, whether it belongs there or not.

You’ve probably used SUM a thousand times. Everyone has. SUM is fine for school assignments and tiny tables, but in the real world, it’s a blunt instrument. If you want totals you can actually trust, ...