How much did world leaders pledge for the new shell of Chernobyl nuclear plant?

One week before the 25th anniversary of the nuclear power plant explosion at Chernobyl, world leaders pledged Tuesday to provide $780 million for the construction of a shelter designed to house the toxic remains for another century.
    Rain, rust and snow have weakened the first shelter, built 25 years ago and designed to last 20. Chernobyl suffered what was then the world’s worst nuclear power accident. The explosion sent a plume of contaminants one kilometer into the air over Ukraine. Winds carried radioactive clouds north over Russia and Belarus. 330,000 people had to be moved from their homes.
    Today, millions of people live on contaminated land. A central core, is closed forever to human habitation. The governments of Belarus and Ukraine devote 5 percent of their national budgets to treating survivors and patrolling the no go zone.
    Despite this legacy, there was little optimism back in February when the European Bank of Reconstruction and Development (EBRD) took reporters on a tour of Chernobyl, hoping to raise world interest in paying for the new containment shell.