Thank you so much for the sample editing, I did review it, like a few grammar and word modification you made, though,it may need take further work for some sentence flow change, for example, after editing, this sentence seems to be not so fluent...anyway we could get those details later.
"Culture encompasses the collective mindset about, attitude and behavior towards, and approach to work adopted by or embedded within a group of people in the conduct of business 

I have a few questions regarding the formal editing about my book manuscript: 

1) Turn around time: The book manuscript  has 9 chapters and more than 100, 000 words, what's your suggestion, according to the Editor World's website, it takes 7 days for editing around 37000 words, so how long does it take for you to editing 50, 000 words, shall I take two steps,  first summit you the first 4 chapters (about 50, 000 words), and review it, and then do the left, chapters,,

2. Interaction: Hopefuly we are working on the technical level or some call the collaborative level editing, how to communicate more interactively, is this message system the only channel, or you could also email or call, for some more tailored editing solution. As this is the final editing before publishing, quality is important, back and forth communication is necessary for perfection (ultimately eloquence -one of the reasons to pick your service). What's your thought?

3. Volume Discount, as from website, there's calculator for pricing the words 30,000, and youplus offer 20% off Promotion code, how about 100,000 or more words, how to calculate the final cost, any volume discount, or shall I contact with the admin in the Editor world office...

Some mainly concerns are about turnaround time, quality & communication, pricing and payment, etc. 

Look forward to hearing from you soon. Again thanks for your effort.

Regards,
Pearl