VBScript code to display gross salary of an employee

Here, Gross Salary is equal to basic salary plus commission. If basic salary >=15000 then commission is 10% of basic salary. If basic salary <15000 and >=8000 then commission is 5% of basic salary. If basic salary <8000 then commission is 100/-

Option explicit

Dim gross, basic, comm

basic=inputbox("Enter Basic salary of an Employee :")

If basic>=15000 Then

   comm=basic*10/100

   elseif basic<15000 and basic>=8000 Then

       comm=basic*5/100

       else

          comm=100

End If

gross=basic+comm

msgbox("Gross salary of Employee is :"&gross)