Revise how to work out the gradient of a straight line in maths and what formula to use to calculate the value change in this Bitesize guide.

Learn to calculate Consumer Price Index (CPI) using Excel and create its graph, please read through this article. We have discussed the prcedure extensively.

The capital allocation line (CAL) is used in finance to illustrate the risk-return trade-off of investment portfolios by displaying the tradeoff of risk-free and risky assets.