You can choose what type of price scale is used in a chart pane: An arithmetic, logarithmic or percentage scale.

Each chart pane can have a different type of price scale.

Note             You cannot change the type of the second price scale.

To change the type of the price scale

▪       Click on the arrow next to the Chart Type icon in the Chart toolbar.

▪       Choose the scale type that you want to use:

Linear Price

Use an arithmetic scale that is divided into units of equal distance. This scale is useful to represent absolute increments of change.

Logarithm Price

Use a logarithmic (or ratio) scale that is divided into units where the ratio difference between two numbers is always represented by the same distance. This scale is useful because equal distances on the scale represent an equal percentage change.

Linear Percentage

Use a percentage scale that displays the performance of a symbol relative to a starting point. The first loaded Close price of the symbol represents 0%. All later price developments are shown as percentages relative to this starting point. You can set a different starting point.

Note             You can also change the type of the vertical scale in the Chart Properties dialog: Choose the name of the chart pane, and then V.Scale > Type. For example: Pane 1 > V.Scale > Type.

To set a starting point at a specific date / time for charts with a percentage scale

▪       Click on the Set Vertical Scale Zero Point icon in the Drawing toolbar:

▪       The mouse pointer changes:

▪       Click on the chart at the date / time that you want to use as the starting point for the relative performance of all inserted symbols. This date / time is now the common zero point for the relative performance of all symbols in this chart.

To set a starting point at a specific price for charts with a percentage scale

▪       Click on the Set Vertical Scale Zero Point icon in the Drawing toolbar. The mouse pointer changes.

▪       Click on the chart near the position where you want to set the starting point and hold the mouse button down.

▪       While holding the mouse button, use the following keyboard commands to set the starting point at a precise price:

O

Open price of this bar / column

H

High price of this bar / column

L

Low price of this bar / column

C

Close price of this bar / column

To set a starting point at any price level for charts with a percentage scale

▪       Click on the Set Vertical Scale Zero Point icon in the Drawing toolbar. The mouse pointer changes.

▪       Press and hold the Ctrl key.

▪       Click on the chart at the price level where you want to set the starting point.

▪       Release the Ctrl key.