It's serious <a href=" http://www.casadelafuente.com/prevacid-fastab-instructions.pdf ">does prevacid work for acid reflux</a> In calculating its hikes, the agency looks for a 7.5% increase in its total fare revenue every two years. But to raise that amount of money, the MTA has to boost fares by 8.4% because, as fares go up, ridership drops slightly.