The document discusses the average lifetime earnings of individuals based on their level of education. It states that those who finish high school earn on average $1,216,000, while those who don't finish only earn $936,000, resulting in attending high school paying $280,000. It then calculates that each school day is worth $66.67 based on dividing the $280,000 return by the number of school days. The document also provides lifetime earnings figures for those with some or full college degrees and calculates the daily rate of attending class based on these amounts.