You cannot carry the loss directly from 2014 to 2017. You have to carry it from year to year until it's used up. The "record of the carryover amount" is your tax return for each year. You have to recalculate your 2015 and 2016 tax returns with the loss carryover included in order to see how much you can carry over to 2017. You should file amended returns for 2015 and 2016.
