In a former Soviet Republic the Consumer Price Index CPI in 2017 = 88.0 (base year 2010= 100). What does this indicate about how the purchasing power of 1 Ruble changed between 2010 and 2017?
A. A Ruble in 2010 is worth only .12 Rubles relative to a Ruble in 2017
B. A Ruble in 2010 is worth more in real purchasing power than a Ruble in 2017
C. A Ruble in 2017 is worth 1.13 Rubles vs what it could have purchased in 2010.
D. A Ruble in 2017 is worth only 88% less than what it could have purchased in 2010.