You can do this with a UDF.
The ValidationValues function will take values from formula and put the result as the message (or title) of a Validation Input Message.
The cell that gets the "tool tip" can be specified with the ActingOnCell argument.
If you have names in column A and amounts in column B, putting this in D17
=ValidationValues("Select Me for Maximum info",MAX(B17:B19), INDEX(A17:A19,MATCH(MAX(B17:B19),B17:B19,0),1))
will put the maximum value from column B and the matching name from column A into the "tool tip" of D17. (This will change as the data in A17:B19 change)
Putting this formula in D18, will put the min value and matching name as the tool tip of E18
=ValidationValues("Minmum Info >>>",MIN(B17:B19), INDEX(A17:A19,MATCH(MIN(B17:B19),B17:B19,0),1), E18)
You would just have to alter the formulas used to calculate the arguments to meet your situation.
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