[From: http://afpfep.org]

“As a fundraiser, you probably know the 80/20 rule: About 80 percent of your gifts will come from approximately 20 percent of your donors. The 80/20 rule is based on the Pareto concept: a small proportion of causes produces a large proportion of result. The general 80/20 rule appears in many different professions, including science, sports, computer software, and occupational health and safety.”

Read the full article here.