--description--
This video will help you understand the equations of simple and compound interest, and what it all means.
Here is the Colab notebook to go along with this video.
Here is an additional Colab notebook that shows you one way to put many of these interest and payment formulas into Python functions. Also you will see an example of using some formulas to output results, notice a trend, and follow up with other formulas to analyze patterns.
--question--
--text--
In percent increase formulas, what does the "principle" refer to?
--answers--
the main amount
the ending amount
the starting amount
the (1 + rate) multiplier
--video-solution--
3