@SerPounce, Thanks for the reply. It is Working now. !!
But One more problem has come up.
I have following Inputs in Number ( Decimal)
Input - A = Plot Area
Input - B = Zonal FSI
Input - C = Premium FSI
Input - D = TDR
Input E = Total FSI = ( Zonal FSI + Premium FSI + TDR)… I have added simple Addition Formula.
Input F = Total BUA = ( Plot Area(Input - A) x Total FSI ( Input E))
But Now this simple Calculation is not working. !!
Why is Total BUA an input field? Surely that is not editable by the user and should therefore just be a text element showing the result of the calculation?