After the initial iteration for the feedback shown to users when they update a proposed translation (T259511), part of the messaging was not implemented. In particular, this ticket proposes to include the percentage of change made by the user:

• The color code should follow the same logic used for already translated sentences. Preferably reusing the code so that it can't go out of sync if adjusted in the future.
• The percentage of change should be calculated against the proposed translation even if the user makes multiple edits. For example, making two edits that replace a different half of the contents each should show that the sentence was changed 100% after the second edit. If this is technically hard to achieve, we can consider alternatives.

The video below shows how that part of the message is not shown: