InDesign 2.13 Adjusting the size of a graphic

http://www.peachpit.com/articles/article.aspx?p=1332861&seqNum=8&rll=1
1. Scroll to view page 5.
2. Using the Selection tool, click to select the picture of the blue crescent moon.
3. In the Control panel, choose 50% from the Scale Y Percentage menu.
4. Choose File > Save.
Select the graphic with the Direct Selection tool to see the scaled size.
26.76382E x 26.76382E ???