Repeated Percentage Change in Real-World Scenarios

The video tutorial explains how to calculate the depreciation of a boat's value over three years using compound interest. It also covers how to determine the original salary before a percentage increase. The tutorial emphasizes the importance of understanding compound calculations and avoiding common errors, such as assuming a starting value of 100% when it has already been adjusted.

What is the initial value of the boat that Chow bought?

How much does the value of the boat depreciate each year?

What is the formula used to calculate the value of the boat after three years?

What is the final value of the boat after three years, rounded to the nearest Hong Kong dollar?

What was Jelena's salary after the 5% increase?

How do you calculate the original salary before the 5% increase?

What is Jelena's original salary before the increase?