Holy moly! Sweet mother of all things calculcated! Do you think we’ll see something like this on the test? Its time consuming - and could easlily be done in Excel in like 60 seconds… I hope that they are making us work through endless examples like this so we can understand it but not waste time on the test doing simple calcs that I know my phat fingers will mess up on whilst entering them into my hp12c during the test. Seriously - no Excel? 
BBBBBBBBBbooooooooooooooooooo!!!