Improve ergonomics for forms and modal buttons (design documentation only)
With an ergonomics approach, the "Save changes" button should be on the right.
I suggest you to read my answer about that. https://www.nngroup.com/articles/ok-cancel-or-cancel-ok/
Let's review and fix button positioning in web forms ("New"/"Edit", Settings) and modal button bars according to the following UX best practices.
Dismissive actions on the left
The dismissive action returns the user to the previous state.
Affirmative actions on the right
Affirmative actions continue to progress towards the user goal that triggered the dialog or form.
Example: Save, Submit, OK, Delete