A 2008 white paper by the Leonardo Academy compared LEED-EB buildings to data from BOMA's Experience Exchange Report in 2007. This showed that LEED-EB certified buildings had better operating cost savings, in 63% of the buildings surveyed. It ranged from $4.94 to $15.59 per square foot of floor space, with an average valuation of $6.68 and a median valuation of $6.07. 