· In December 2020, all CPI cities in North Sumatra had inflation, namely Sibolga at 1.32 percent; Pematangsiantar by 1.47 percent; Medan by 0.65 percent; Padangsidimpuan by 1.00 percent; and Gunung Sitoli by 1.87 percent. Thus, the combined 5 CPI cities in North Sumatra in December 2020 inflation of 0.75 percent.
· In December 2020, Medan recorded inflation of 0.65 percent or an increase in the Consumer Price Index (CPI) from 103.48 in November 2020 to 104.15 in December 2020. Inflation occurred due to an increase in prices indicated, namely the food, beverage group , and tobacco 2.00 percent; clothing and footwear group by 0.12 percent; housing, water, electricity, and household fuels group of 0.03 percent; the food and beverage / restaurant supply group by 0.07 percent; and the personal care and other services group by 0.38 percent. The expenditure group that experienced a decrease in index were the equipment, equipment and household routine maintenance group by 0.05 percent; health group of 0.03 percent; and the transportation group by 0.19 percent. Three other groups that did not experience changes in index, namely the information, communication and financial services group; recreational, sports and cultural groups; and education groups.
· The main commodities contributing to inflation during December 2020 in Medan include red chilies, bird's eye chilies, chicken eggs, dencis fish, cooking oil, perfume, and tuna / ambu-ambu.
· Of the 24 CPI cities on the island of Sumatra, all cities recorded inflation. The highest inflation was in Gunung Sitoli at 1.87 percent with a CPI of 107.85 and the lowest was in Bengkulu at 0.14 percent with a CPI of 104.33.
