@allison213
I do not understand this part ,why we divide (619.2)/100,500 = (0.006).
Also I did fine another explanation to this Q.Why the ans is different to same Q?
A hospital is comparing last year's emergency rescue services expenditures to those from 10 years ago. Last year's expenditures were $100,500. Ten years ago, the expenditures were $72,800. The CPI for last year is 168.5 as compared to 121.3 ten years ago. After adjusting for inflation, what percentage change occurred in expenditures for emergency rescue services?
The consumer price index (CPI) is a measure of the overall cost of a fixed basket of goods and services purchased by an average household. The inflation rate is calculated as the percentage change in the CPI from one period to the next. By extension, nominal costs can be deflated to price level adjusted amounts by dividing a base year price index by the current year price index
Base Year 72,800- (current year cost times the ratio of base to current year indices: 100,500 * (121.3/168.5)=difference (452)`
Thanks!
Hope and determination will lead to success.