Everyone knows the first 80% takes half the time and the other 20% takes half the time. (Though I've personally seen cases where the first 80% takes 20% of the

Everyone knows the first 80% takes half the time and the other 20% takes half the time. (Though I've personally seen cases where the first 80% takes 20% of the time and the remaining 20% takes the other 80% of the time).