18 - (25%) = 13.5
28% decrease.
It is a 55% decrease.
38.9% decrease.
98*.18=17.64 98-17.64=80.36
It leaves 18 balloons.
13 over 18 percent is 72.2222222.
0.18 (although "18 percent" is also a number).
95
18 over 25
Approximately 76 percent of population.
18 - 3n