after 8 hours there are 995 bacteria cells left
let y be the amount after 8 hours
the multiplying factor is 100 - 5 = 95 % = 0.95
y = 1500 ×
= 995
11/14 is 0.785...
In percentage, this is 78.5%
Rounding to the nearest ones, the ANSWER would be 79%
Using the ac method : (b-5) (b-3)