MetaStock version 18 introduced new charts and many accompanying features, including the ability to see performance information on the trendline. To add this info on the trendline, follow the steps below:

MetaStock v18 --> Current

1. Open MetaStock. 
2. From the Power Console, select the Charts button.
3. Open the desired chart.
   • Type in the instrument using the Instrument(s) field at the top.
   • Select instrument using Custom Online Data Lists or Public Online Data Lists.
   • Select local data instrument using Local Data Lists.
4. From the Trendline toolbar on the left side of MetaStock, select the Trendline.
5. Click at the desired start point, move the mouse to the desired end point and click again.
6. Double click, or right-click and select Properties, on the trendline.
7. Select the Show Label: option.
8. Select either % change or point change.
9. If desired, you can select Show Number of Bars to see the amount of data the performance info is calculated on.
10. Click OK.

Or 

1. Open MetaStock. 
2. From the Power Console, select the Charts button.
3. Open the desired chart.
   • Type in the instrument using the Instrument(s) field at the top.
   • Select instrument using Custom Online Data Lists or Public Online Data Lists.
   • Select local data instrument using Local Data Lists.
4. Open the Insert menu
5. Select Trendline
6. Click at the desired start point, move the mouse to the desired end point and click again.
7. Double click, or right-click and select Properties, on the trendline.
8. Select the Show Label: option.
9. Select either % change or point change.
10. If desired, you can select Show Number of Bars to see the amount of data the performance info is calculated on.
11. Click OK.

Keywords: MetaStock DC, MetaStock RT, trendline, line study, performance, change, chart