Assume that Melanie had 200000 of disposable income and spent 180,000 on consumption in 2006 and had 300,000 of disposable income and spent 240,000 on consumption in 2007

If Melanie's went up to 400,000 in 2008 how munch would she be likely to spend on consumption that year?
Ans: 300,000â?¦..how do you get 300,000?

If melanie's income went down to 100,000 in 2008 how much would she be likely to spend on consumption that year?