Google Spreadsheet Post #1078
Yogi Anand, D.Eng, P.E. ANAND Enterprises LLC -- Rochester Hills MI www.energyefficientbuild.com. Mar 10, 2013
user David LaLande :(http://productforums.google.com/forum/?zx=wp0u4iwq5gs6#!category-topic/docs/spreadsheets/pN8t5vketRI)
I need some help with a formula for a 3 month rolling average. I've tried it a couple different ways but I can't get it right. Any help would be appreciated.