Why did you change the behavior

In the last update the way to make any calculation changed from a beautiful 2 ENTER 2 + to the normal 2+2=
This changed the product that I have bought.
One star if you bring back the old way lets go to five star.
And if you are looking for a 12C clone dont buy this new version

Leo Martins 13 about RLM-Fin-PX, v4.1