Respuesta :

Answer:

It is a 40% decrease.

Step-by-step explanation:

5 = 100%

meaning 1 = 20% of 5 because 1/5 of 100 is 20.

So if the new quantity is 3, then the decrease from 5 and 3 is 2.

1/5 + 1/5 = 2/5

20% + 20% = 40%

So it would be a 40% decrease.