property ScrollBar.LargeChange as Long
The amount by which the scroll box position changes when the user clicks in the scroll bar or presses the PAGE UP or PAGE DOWN keys.

TypeDescription
Long A long expression that indicates the value being added or subtracted from the control's Value when the user clicks the scroll's box upper or lower area.
By default, the LargeChange property is 10. The LargeChange property gets or sets a value to be added to or subtracted from the Value property when the scroll box is moved a large distance. The SmallChange property gets or sets the value added to or subtracted from the Value property when the thumb is moved a small distance. If the LargeChange property is 0, the Value property is not changed when clicking the the upper or lower part of the control. Use the Minimum and Maximum properties to specify the range's value. Use the Caption property to put a HTML text on any part of the control. 

The Value property goes from: