Consumer Price Index (CPI)=Cost of a specific basket in a given yearCost of the same basket in the base year×100Consumer Price Index (CPI) equals the fraction with numerator Cost of a specific basket in a given year and denominator Cost of the same basket in the base year end-fraction cross 100
If you are preparing for a specific or the final IB session? ib economics hl formula booklet repack
Your success in IB Economics HL depends on how well you can apply quantitative tools to evaluate economic policies and real-world events. A repack helps you move from passive reading to active problem-solving. So take the formula booklet, tear it apart, rebuild it, color-code it, annotate it, and make it yours. With this repack, you'll step into your exams with clarity, confidence, and the knowledge that every formula is right where you need it. Consumer Price Index (CPI)=Cost of a specific basket