Running totals show how figures build over an extended period, one entry at a time, allowing you to see trends and patterns ...

Cells in Excel are referred to using relative or absolute references. A formula with relative references changes when the cell's position does. If, for example, a cell has a formula "=A1" ...

In such a situation, you can use what's called an absolute reference in Excel, which won't change when you drag or copy it from cell to cell. To create one, precede the row letter and column ...