What is the difference between Cap rate and cash flow computation?Hi,There must be many investors here. I'm planning to buy the first investment property.Someone suggested this calculator to me for before/after tax cap return rate computation. I tried but found it's hard to understand why I have negative cash flow but still has around 4.8% cap return rate? Can anyone help?http://www.propertycashflowcalculator.com/index.jsp?price=450000&downpay=&closingcost=10000&apr=3.5&terms=30&propertytax=1.25&incometax=28&rental=2500&vacancy=1.2&hoa=200&insurancemaintenance=100&managementfee=0&runcalc=1my number is $450k purchase price, down 25%, rate 3.5%, rent $2500 and HOA $200.Thanks,October 18 2012 - US00YesReport a ProblemProblemSelect oneOffensive contentIrrelevant contentSpam (pure self-promotion)OtherDetailsYour emailPlease enter a valid email address.Submit CancelContent flaggedWe will review this content. Thanks for helping make the site more useful to everyone. To learn more, read Zillow's Good Neighbor Policy.We're sorry. This service is temporarily unavailable. Please come back later and try again.