Scale Values is used to proportionally increase or decrease the vertical distance between selected keys on the function curves in Curve Editor. It uses the Scale Origin Line as a movable reference point for the scale operation. Practically speaking, scaling values always creates spatial adjustments, rather than temporal. To scale in time, use Scale Time instead.
Select an object, then right-click and choose Curve Editor.
(Scale Values).
The orange Scale Values Origin line appears at the 0 position on the vertical scale.