About this module
Now money moves through time.
Interest, discounting, cash flows, and returns will build on the ratios and exponents we already know.
We will keep the timeline visible, distinguish price gains from external cash, and test why equal opposite percentage returns do not restore the original balance.
Lessons
- Lesson 11
Simple Interest
A fixed-rate invoice financing illustration
2:30 - Lesson 12
Compound Interest
When a savings balance earns on previous interest
2:30 - Lesson 13
Present Value and Future Value
Comparing money on two different dates
2:31 - Lesson 14
Discount Factors and Discount Rates
One price today for one unit paid later
2:33 - Lesson 15
Cash-Flow Timelines and Net Present Value
A project whose future receipts must repay its initial cost
2:35 - Lesson 16
Simple Return
A dividend can change the answer even when the price is known
2:40 - Lesson 17
Log Return
Adding changes in log space without confusing wealth
2:49 - Lesson 18
Holding-Period and Cumulative Return
A two-period performance report with changing bases
2:43 - Lesson 19
Arithmetic versus Geometric Average Return
Choosing an average that answers the actual return question
2:36 - Lesson 20
Return Annualization and Deannualization
An annual equivalent is not a prediction
2:37