Using the Federal Tax Ordinance 132(F) either through a third party such as Commuter Checks, TransBen or Wage Works through your payroll department you have the ability to save up to 40%, and your employer can save up to 10% of the taxes on an amount up to $230.
$220 (total for service per month) - $88.00 (amount of savings from 132(F))=$132 per month
With the ability to work to and from the office, a lot of employers are sharing up to 50% of the expense. $132/2=$66 per month
$66 per month / 20 days / 2 trips per day=$1.65 per trip