A Consumer Prices Index (CPI) is made up of four items. The table gives the percentage change in price for each item over a one-year period and the weighting of each item. Which price change will have the greatest effect on the level of the CPI?
- Afood, $+5\%$, weight $0.30$
- Bhousing, $+6\%$, weight $0.20$
- Crecreation, $+3\%$, weight $0.40$
- Dtransport, $+4\%$, weight $0.10$