You first calculate your overall AGI minus the threshold amount and then determine the amount of net investment income above this that will be subject to tax using some straightforward calculations.
It also uses geolocation data to determine which gas station you just visited to fill up and will automatically calculate how much you paid based on a database of stations.
And today we launched a new web site called makinghomeaffordable.gov -- to help borrowers determine whether they're eligible for our plan, and to help them calculate how much money the plan could save them on their mortgage, on their monthly payments.