Instruction
Great! Let's move to the second exercise.
Exercise
For each row, show the Day, the Price on that day, the Price 7 days earlier (EarlierPrice), and the Difference between these two values.

Great! Let's move to the second exercise.
For each row, show the Day, the Price on that day, the Price 7 days earlier (EarlierPrice), and the Difference between these two values.
