The quotation must contain relevant information about how the company can implement your recommendations.
Use a format as usual in the consultancy world and come up with a nice and applicable name and logo of your consultancy firm.
The quotation contains the following aspects:
to whom the quotation is addressed
a brief explanation of your previous recommendations and the implications for the other building blocks
your research plan (what you will investigate, your research activities, the timeline)
What you will deliver, and what it will deliver to the company
starting date and the deadline.
how do you deliver the research?
how many hours do you think you need to deliver
the costs involved (i.e. your fees, other costs) for the total project.