For rough earnings, just look at the graphs in the post (units sold) and multiple it by the unit price for that time period. During the first graph (Apple Feat

For rough earnings, just look at the graphs in the post (units sold) and multiple it by the unit price for that time period. During the first graph (Apple Featured), the app was selling for $4.99. During the second graph (Daring Fireball), the app was selling for $9.99.