it goes like this f(t)=P(1+r)^t r=rate of decay or grouth if r>0 then it is grouth by r if r<0 then it is decay i P=initial amount so given f(x)=5500(1.65)^t f(x)=5500(1+0.65)^t 0.65>0 so it is growing by 65%
Both a discount and decrease will make the cost the same which is $225 for the object. I think that's what your asking. I'm sorry if it is not that helpful.