adding constant to multiple single line text objects

[KU tech]

Help!
I have thousands of single line text entities used as elevation labels.
My problem is that they all need to be change by a constant.
Example: 89.5 to be lowered by .9 to 88.6....
All of the text is two didgits and rounded to the tenth. (XX.X)
I have several drawings to edit and all of them will have a different constant.
Does anyone have a lisp that might be able to automate the process?

Thanks in advance

[T.Willey]

See if the code here works for you.

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