The lecture phase cost depends on which country you are from.
You can find your country’s cost at the bottom of this page (scroll down)
Country A: $2,490 USD
Country B: $1,590 USD
Country C: $990 USD
Outreach cost is announced early in the lecture phase because it is dependent on which country the outreach team will go to. The average outreach cost is $1,800-$2,200 USD.