I created a simple value sum example driven by button click event as below.
Sub buttonEvent()
Dim a As Double
a = Application.WorksheetFunction.Sum(Range("A1:A10"))
Cells(11, 1).Value2 = a
End Sub
GUI is like below.
When I click sum button, this macro sums values in defined range.
I would like to change the click event as range value change event.
It means, as soon as I change a value in the range, value sum function will be performed.
How can I do that?

