"One Thousand Paintings"
Here's a novel, albeit, unusual artistic idea:
A young artist from Switzerland, Sala, is selling paintings of the numbers 1 to 1000. The price of each painting
is calculated like this:
Value = 1000 - number. Initial discount: 90%. Current discount: 40%.
The discount will decrease by an absolute 10% for every 100 paintings sold.
The minimum price is $40. So far, Zala has sold 583 paintings.