From the table above, calculate the GDP deflator for 2017 to 2019, taking 2016 as the base year and then find the percentage change in GDP deflator for 2017 to 2019.
QuantityQuantity QuantityYearof PotatoesPrice ofPrice of UnemploymentProducedPotatoesof Steelof SteelProduced ExportedSteelBenefits2016100$1200100$2$2002017110$1.121080$2.1$160201890$1.118060$1.8$3002019140$1.225040$2$220