Aquantity decreases from 35 to 30 ? what is the percent change ?

14.28%

Step-by-step explanation:

1) you have many different formulas for % change the one i'm using is :

n

n= new quantity

o=old quantity

-x= % change(since the quantity decreases the numerator will be negative)

so

30-35=-5

cross multiply:

-500=-35x

divide on both sides:

14.285=x

hope this helps!