Respuesta :

Decreased amount = 80 * 0.65 = 52
So, new amount = 80 - 52 = 28

In short, Your Answer would be 28

Hope this helps!
80 divided by 100 =0.8 so 0.8x65=52  so 65% =52 members  so 80 - 52 = 28 so the new amount is 28 members