Hi everybody, im sorry for this simple question but i guess i'm not handling it well. 

I know that the multiplying object stores two values (left inlet and right inlet)  and performs the operation when both are stored or when a bang is sent to the left inlet. I did this mechanism (attached image) in order to multiply this two inputs every time one of them changes, but i am observing that the result isn't always the same. 

So, i think that im doing something wrong, could you help me?

Thanks you!

Sebastián