It's about nine-tenths the number of Keys on a Piano.
In other words, 80 is 0.910 times the count of Keys on a Piano, and the count of Keys on a Piano is 1.10 times that amount.
It's about one-and-one-tenth times the number of Submarines in the US Navy.
In other words, the count of Submarines in the US Navy is 0.910 times 80.
It's about three-fourths the number of Wolves in Yellowstone National Park.
In other words, 80 is 0.7690 times the count of Wolves in Yellowstone National Park, and the count of Wolves in Yellowstone National Park is 1.30 times that amount.
It's about two-thirds the number of Elements on the Periodic Table.
In other words, 80 is 0.6780 times the count of Elements on the Periodic Table, and the count of Elements on the Periodic Table is 1.470 times that amount.
It's about three-fifths the number of Union Stations in the United States.
In other words, 80 is 0.5930 times the count of Union Stations in the United States, and the count of Union Stations in the United States is 1.690 times that amount.