Within a large metropolitan area, 20% of the commuters currently use the public transportation system, whereas the remaining 80% commute via automobile. the city has recently revitalized and expanded its public transportation system. it is expected that 6 months from now 30% of those who are now commuting to work via automobile will switch to public transportation, and 70% will continue to commute via automobile. at the same time, it is expected that 80% of those now using public transportation will commute via automobile and 20% will continue to use public transportation. in the long run, what percentage of the commuters will be using public transportation? (round your answer to the nearest percent.)