Explain the principle or application of supply and demand analysis applied in ea

Explain the principle or application of supply and demand analysis applied in each
section of the report and why that principle or application is appropriate in this context.
My topic is Planet Fitness gym and how they differentiate from other gym’s. This is a group project comparing Planet fitness, La Fitness and Gold’s Gym.
Analyze Planet fitness’s Memberships tiers and pricing
Analyze planet fitness’s forms of advertisement
And Analyze how much they spend on budgets for the advertisements
These are the worldwide sales