Answer:
Year Ended December 31 Inventory at Current-Year Cost Price Index
2019 $20,000 100
2020 $22,464 108
2021 $26,334 114
Inventory at base year prices:
2020 = $20,800
2021 = $23,100
Change from prior yer:
2020 = $800
2021 = $2,300
Dollar value:
2020 = $20,000 + ($800 x 1.08) = $20,864
2021 = $20,864 + (2,300 x 1.14) = $23,486