Jack Layton says the NDP, if elected, will eliminate poverty in Canada by 2020. An admirable goal, but I think reducing poverty by 80% would make a better headline.
Talking in absolutes (“eliminate”) sounds idealistic to the point of being unreasonable.
Any values from 90% up are used too often to mean “virtually all” and that’s barely better than “eliminate.”
But 80% sounds like a realistic yet ambitious goal.