Well I personally think and this is just my opinion or should I say answer but I think it is 16
Answer:
Slope = - 1/3
Step-by-step explanation:
Y2-Y1 / X2 - X1
Answer:
$99/$115 x 100% = 86.086% of the original price
So 100% - 86.086
= 13.9 = 14%
Or you could just do (115 - 99) x 100 which gets the same answer.