For each challenge, they will gain a certain money (for starting it is $5,000).
Then there comes photoshoots. In each shoots there would be 4 groups - the best photo/performance (will gain $20,000), the top performers (will gain $10,000), middle ones (for $5,000) and the bottom ones (will deduct $10,000).
In some points there would be an increase and decrease of money depending on the stage of the competition, once you go bankrupt you will get eliminated.