There may be other ways to find what you entered as your original goal weight, however, I go to "My Weight History" and click on earliest "Diet Entry Date". (Not the graph, but the entry's below the graph). That pulls up a screen that has the a line at the top with the Goal Weight you entered that date. It says "Still to Go" and a number.
Hope this helps
The Perfect Speed
"any number is a limit, and perfection doesn't have limits.
Perfect speed, my son, is being there.”
Chiang from "Jonathan Livingston Seagull