For editing, changes are made with the "Track Changes" option of Microsoft Word. This enables easy comparison of the original file to the edited version. Changes can be accepted either en masse or one-by-one. The "Add Comments" option is used to explain any decisions made that may be unclear, to state where information is missing, or to ask for a clarification if the original phrasing is ambiguous.
Crucially, my quote is final. Because I quote based on source words, and not hours, you will know the final cost before I begin work. This means that once the price is agreed upon the cost of the project will not increase if the text requires more time than usual.
Banner image: Image of human GDF5 monomer, created using RasMol. © 2018 Kevin Clayton.