**TI83F* AppVariable file 03/22/07, 10:138 'GLM208'%nav F441BD13B950415AA7EB861D73925D5FGLM208. GLM2081  percent of changeYpercent of change:ÖA ratio that compares the change in a quantity to the original amount. percent of decreasegpercent of decrease:ÖThe ratio of an amount of decrease to the original amount, expressed as a percent. percent of increasegpercent of increase:ÖThe ratio of an amount of increase to the original amount, expressed as a percent.  populationVpopulation:ÖA large group of data from which a sample of statistical data is selected.  random samplegrandom sample:ÖA sample that is chosen without any preference, representative of the entire population. surveybsurvey:ÖA question or set of questions designed to collect data about a specific group of people.Ö?