0.775 is the smallest of those numbers.
78 + 79 + 80 + 80 + 81 + 81 = 479
Assuming you mean the arithmetic mean, it is 80.
80
135 percent of 81 = 109.35135% of 81= 135% * 81= 1.35 * 81= 109.35
81 percent = 0.81 or 81/100
81 percent of 310 is 251.1
23 percent of 81 is 18.63.
81% of 81= 81% * 81= 0.81 * 81= 65.61
8.1 = 810%
81%