Its a reasonable ask, to hide totals etcand I think it should be user selectable but a low priority feature request.
Anyone can esitmate, get a free slicer, download a similar model and question your costs thou even without that view shown…
I dont run a business, but like anyone with a 3D pritner get asked to do things. I googled and found various “quoting” spreadsheets online that create a quote for youy, itemises filament ,time. prepare, parts and labout (liike fasteners), printer wear and tear and markup margin, your not doing this just to break even after all.
It has a customer details section and model section in print hours and filament grams etc etc. It also has a box that I added to do the screen grab showing the slcer view, with the totals but not the cost bit.
I then openly show my costs via the itemised quote process, discounts for bulk, increased costs for custom designs etc etc and they agree and signoff. OR they dont. Its non-negotiable because I have laid it all out.
I found a slicer screengrab just isnt good enough in the end, and was sick of explaining, just like you are, its not just filament costs - so the quoting sheet does it all for me now. Yes, its a a bit more time cosuming intiially setting up all my rates, electricity ccosts, pritner costs, filament costs, but once setup with ALL your costs, its just customer name, model details like print hours and filament , copied in from slicer.
Picture says 1000 words…
This is a “basic” example but all i did here was name it - punch in print filament grams and hours
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added the slicer totals ffor your comparsion, thats nor normally there
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print run costs are $1/hr . Its actually about 0.75c per hour ,but this also gives me a re-print buffer.
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various other small margin factored in
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After all that, its still only about $20? profit ffor printer being tied up for 33+hours. In this case, I would NOT take the job , its simpy not worth it.
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In 33hrs I could print at least 8 trays of 25 small animal flexibles each, 200 felixibles, selling for $5 each and costing about 0.60 ccents each to prit. - call it $4 profit per, x 200 - $800 profit vs $50 …
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Shipping is caculated separately and individally for me, as I dont use ETSY or anything Its manual for me, so different evertim, I dont have a shopfront or regular online sales etc.
^^ is why I run a full quote … to get a clear picture. I might print the AWP but its going to cost them a LOT more than $200 
This is NOT my spreadsheet, it was a template I found here https://www.youtube.com/watch?v=C0FN0TVK6BI
Sources - Based of CNC kitchens original work. revised by CrossLink