# Final Exam

 Percent as fraction "percenatge of" part/total = %% * total = partpart/% = total Absolute change New- oldif given in percents units for absolute change are percentage points Percent change new-old/old Absolute and Relative difference not absolute changepercentage more than; percentage less thanlarger-smaller/the quantity after "than" Increasing or decreasing by a percent # * (1 + .%) = Pecent increase# * (1 - .%)= Percent decrease Successive percentage change multiple increases or decreases in percentorg # * (1 +or- .%) = XX * (1 +or- .%) =Ycontinue as needed Solve for Original Finding original # that has been reduced = new/(1-.%)Finding original # that has been increased = new/(1+.%) Ratios 1st #/ 2nd # Ratios percent more or less than Assuming A=5; B=4A is what percent more than B =25% moreB is what percent less than A =20% less Ratios percent of Assuming A=5; B=4A is what percent of B = 125%B is what percent of A = 80% Rate per 10,000 Example death rates of hunting 600 deaths/2000000 hunters = .0003.0003*10,000 = 33 deaths per 10,000 participants Linear Equation? y = mx + bwhere m=slope or rate of changeb= y intercept or inital valueyintercept or inital value= y value when x equals 0 Rate of change formula? B2-B1/A2-A1 Exponential Formula? y = P*(1+or-r)^xWhere P = inital value(value of y when x = 0)r = percent change (in decimal form)x = independent variable (usually time)y = dependent variable Exponential relationship? For an increase of 1 in x, y increases or decreases by a constant percent change. Linear relationship? as the x variable increases by 1, the y variable increases or decreases by a certain amount (rate of change) Finding ratio of CPI? new years CPI/old years CPI = CPI ratio Converting to constant dollars? X dollars in old year is worth how much in new year constant dollars new year CPI/ old year CPI * X dollars = X dollars in new year constant dollars Annual Inflation rate? Percentage change in the CPI in one year from previous yearfor example1996 CPI-1995CPI/1995 CPI = Inflation rate 162.6-157.9/157.9 = 3.0% inflation rate for 1996 Finding monthly payments using excel? fx icon in formula bardrop down menu > finacial > PMT > box appearsEnter rate = APR (as a decimal) divided by 12Enter NPer (total # of payments)= # of years *12Enter Pv (principal) = amount of loan as negative # no commas Absolute cell reference? used to lock in a cell reference in a formula when working on tables so that as formula moves down the table it still refers to correct cell. enter cell reference than hit F4 button Authorametzga ID174205 Card SetFinal Exam DescriptionFinal Exam Updated2013-03-07T00:45:27Z Show Answers