plz solve step by step

1. Mr. Brain works at a famous e-marketing company. Mr Brain has received 5% wage increase at year beginning and 5% at the beginning of June. He is curious whether his wage protect its purchasing power. He collected monthly inflation data (Consumer Price Index) from The Turkish Statistical Institution (Turkstat) webpage as follow

	Jan	Feb	March	April	May	June	July	Agus	Sept	Oct
CPI 2014	1.98	0.43	1.13	1.34	0.40	0.31	0.45	0.09	0.14	1.90

1. 1. Construct a consumer price index that base time is December 2013 (December 2013=100). What is the inflation rate as a total for 10 months ?
2. 2. Does the wage increase at year beginning protect the purchasing power of Mr.Brain during first six months?How much his real wage decreased or increased?
3. 3. Since Mr. Brain protect his purchasing power during 2014 year, find the maximum average inflation rate for November 2014 and December 2014 ?