property ValueAxis.Start as Variant
Defines where the value-axis begins relative to the full axis.

TypeDescription
Variant A numeric  expression between 0 and 1 that defines where the value-axis begins relative to the full axis.
By default, the Start property is emtpy, which indicates that the property has no effect. The Start/End fields define where the value-axis begins/ends relative to the full axis. The ColorChart property defines the color to apply on the chart's background right to the value-axis. The Axis property specifies the name of the value axis to use.

For instance: