Answer:
b. percentage change in the consumer price index.
Explanation:
Inflation is the increase in the price of a commodity, it is expressed as a percent change in the price of an item. We can calculate the inflation using percentage change in consumer price index.
Consumer price index measure the percentage of change in the price of a market basket of consumer goods and services.
A. Investment percentages and maturity delegations
<span>Interest rate is directly proportional to time. An interest rate is the amount of money due per period or a proportion of the amount borrowed or deposited. The total interest depends on the principal sum and the length of time over which it is lent or deposited. Therefore, the value of money will depend on interest rate and time. The longer time of debt or bank deposit, the higher interest rate.</span>