To do this, you must first multiply each one by a 100. Doing this, you get 27 and 3. Find the quotient and that is 9. Add me as a friend I am great with math.
The price: - last year: $2.25 - this year: $.45 The decrease: $2.25 - $.45 = $1.80 2.25 : 1.80 = 100 : x 2.25 x = 180 x = 180 : 2.25 x = 80 Answer: The percent of decrease is A ) 80%