Excel defaults to a linear scale for graphs, but you can easily change it to logarithmic to suit wide data ranges or logarithmic phenomena. The Chart Wizard produces graphs with linear scales.

Logarithmic price scale—also referred to as log—represents price spacing on the vertical or Y-axis dependent on the percentage of change in the underlying asset's price.

A logarithmic price scale is a type of scale used on a chart that depicts two equivalent price changes by the same vertical distance on the scale.

There is disagreement on the proper way to label logarithmic scales in charts and graphs, especially when the base is not 10. This post shows several alternative ways of labeling log scales ...

This post offers reasons for using logarithmic scales, also called log scales, on charts and graphs. It explains when logarithmic graphs with base 2 are preferred to logarithmic graphs with base ...