In a newspaper, it was reported that yearly robberies in Springfield were up 34% to 134 in 2011 from

In a newspaper, it was reported that yearly robberies in Springfield were up 34% to 134 in 2011 from 2010. How many robberies were there in Springfield in 2010?

2010 robberies = 2011 robberies / 1.34
2010 robberies = 134 / 1.34
2010 robberies = 100