from watt to kilowatt

[mai]

I have done this scritp to change the value from watt/h to kilowatt/h. But it gives me always 0. Why??

-------------------------------------------------------------------------------
function kilowatt()
 
    local value = event.getvalue('32/2/16')
   
 
    if value then
     
        local new_value = value * 0.001
       
        return new_value
    else
     
   
    end
end

local valor = kilowatt()

 
    grp.write('32/2/16', valor)