Even today, I'd say yes, but then we go down the subjective rabbit hole.
It's not enough to drive golden Bentleys, but it will typically afford you a very comfortable living; how comfortable all depends on where you are. California, middle class; midwest, demi-god.
Again a subjective tilt, but it does matter for your locale; good living costs less one place versus another. What do your neighbors make?
For a real breakdown, check the wikipedia: http://en.wikipedia.org/wiki/Household_income_in_the_United_States
BUT since you are asking basically an opinion, I would say for the most part, in most places, yes, 80K is a good living.
It depends on the country and it depends on the currency.
80,000 Yen a year would be a pittance, almost worse than the sweatshop wages in Bangladesh.
80,000 Kuwaiti Dinars a year would make you absolute royalty in Sierra Leone.
Assuming, however, that the question is referring to $80,000 USD and a job in the United States, again it comes up to a question of where you are living. In New York City, $80,000 a year is not that great of a wage and will barely make ends meet. It will, however, go the distance in rural Montana. From what I am aware, advanced programmers and middle-aged businessmen make approximately $80,000.
20 percent is simply a fifth. So simply divide 80000 by 5 and you will get 16000 dollars
80000 dollars
Eighty thousand dollars
15% of $80,000= 15% * 80000= 0.15 * 80000= $12,000.00
$38.46 per hour.
$997.51 usd
80000 dollars
About $38.46 per hour.
$80,000 is £65,926
he is worth 80000 dollars
Really simple mathematics.... $4,000
30% of $80,000 is $24,000.$24,000.00