Assuming you want to know the cost of repainting a Cessna 172:
The cost of painting a Cessna 172 will depend on a few different variables. The first, and probably most important variable is the size of the airplane. The length of the fuselage and wingspan will dictate how much paint is required and therefore how much it will cost. The second variable is the type of paint that is being used. There are many different types and brands of aviation paint on the market, each with its own benefits and drawbacks. The third variable is labor costs. Hiring a professional painter will obviously cost more than doing it yourself, but it is important to consider whether or not your time is worth anything when considering this option.
All things considered, repainting a Cessna 172 can cost anywhere from $5,000 to $20,000 USD.