Hi I am using calc embedded, in an org-mode buffer: I write: Total := 76121 EUR Bastidor402 := 33.5124% * Total => (1) After doing: C-x * a C-x * u (on the formula (1)) I get: Bastidor402 := 33.5124% Total => 25509.974004 EUR Which is correct, but the original formula (1) is changed: Instead of Bastidor402 := 33.5124% * Total => (1) Emacs changes it to: Bastidor402 := 33.5124% Total => (2) I delete the result, and I do again C-x * u (on the formula (2)), and I get: Bastidor402 := 33.5124 % Total => 33.5124 % 76121 EUR Which is another change in the original formula (2). Now we have: Bastidor402 := 33.5124 % Total => (3) and a wrong result.