Assuming you use chrome/firefox/edge (not IE html mode), you can use xpath to do it.
If value is in a separate tag around "PO Number", you use relative xpath, if it is same tag, then use contains..
For example, to find value near Recommend button in this page in the 3rd post, use xpath like: "(//a[text()='Recommend'])[3]/../a[1]"
To find "Posted x days ago" in second post you could do something like "(//span[starts-with(.,'Posted') and contains(.,'days ago')])[2]"
In your case it might look like: "//div[text()='PO Number']/../div[2]", can't tell without looking at your html.
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Andrey Kudinov
Project Manager
Europe/Moscow
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