Hi Everyone,

Currently I am working on an extensive (ms excel) report regarding the worldwide usage of personal and commercial vehicles and their impact on the environment. The report includes a lot of numbers about the kind of fuel used, average mileage, costs and CO2 footprints. Although I just turned 50 and have had a long career as a software developer, I still don't know jack about math, so I hope I can find some help here with some problems I have (or no doubt WILL have)....

Thanks in advance!!
Cheers, Rene