Answer:
18.75%
Explanation:
I like to think of this as is/of = %/100
If 65 IS a percent OF 80 then we set it up as:
65/80= %/100
We are trying to find %.
We need to find the number you multiply 80 by, to get 100 which is 1.25.
Now multiply 65 by 1.25 to get your percent. You get 81.25 percent.
Subract 100-81.25
Now you have your answer of 18.75% discount.