How are you justifying these PPF prices that you’re charging?

I’ve been doing extensive research on PPF. And the prices that I see people charging for PPF doesn’t add up.

A roll of PPF film from nano or Xpel for example costs $1500-1600 for a 100ft roll that’s 72inches wide. Total square foot coverage is 600sq ft.

A car as big as the Escalade has a total of 326sq ft minus all the windows and body roof. So a full body is probably closer to 200sq ft. That means material cost for a full body Escalade would be around $500-533. A 600sq ft roll should be also be able to cover at least 2-3 full body cars or way more if customer is only asking for front bonnet etc.

Next labor: an experienced installer should be able to knock out a full body install in 6-10hrs. Let’s say installer is very experienced and charges $50-100/hr. ($100 is very high and inflated in my opinion). Your labor cost would thus be 300-500@$50/hr or $600-1000@$100/hr. Total labor $300-1000.

Total cost for Escalade would be $800 to $1533 on the high end.

Here’s the part that doesn’t make any sense. I see shops charging $5000-8000 for full body PPF installs. Even if you took the total cost of $800-1533 and marked it up 30% the bill would be $1040-1992. But at the prices of $5-8k, that means final invoice is is 300-400% more…

Even factoring the cost of equipment like plotters, cutting tools and shop overhead costs like rent, it still doesn’t add up. So what gives? Why is PPF priced so high?