11 out of 15 is 73% (rounded up to whole numbers, it is actually 73.333 recurring).
12 out of 15 is 80%
12 percent of 15 is 1.8
53.3 repeated percent
15/1.25 = 12 Therefore, the number that 15 is 125 percent of, is 12.
12/15 = 4/5 = 80 percent
-3
12 is 15% of 80.