In XYZ City, given the Composite Consumer Price Index (CPI) is 111.1 (in Year 2004) and 122.2 (in Year 2005). Determine the inflation rate in 2005. (2.d.p.). [Remark]

A “market basket” of goods that cost $140 in 2005 cost $172 in Based on this information, what was the inflation rate over that decade?

The monthly effective rate of discount is 0.3% . Calculate the force of interest per annum which is equivalent to this discount rate. (No tables, ONLY formulas, please)

Given that the Consumer Price Index was 247.9 in January 2018 and 261.6 in January 2021, find the inflation rate from January 2018 to January 2021.