My Monthly budget for transportation : My monthly pay would be 5,695.03 to find my monthly budget for transportation I need to find 10% of my monthly pay. For each month I could use $569.50 for just transportation.To save up money I would take the CTA to get to my job or to any other places.The CTA transit pass that would be using would be the 30-day CTA/Pace Pass which would cost $100.This would leave me saving up each month about $469.50.