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Prototype: Amber

Amber is a calculator for investors to manage their existing stocks. It helps to know what to sell or buy to increase the return of investment.


Stock brokerage services offer investors access to their investment history via account statements. However, investors who monitor their investments independently may gather personalized data over time, which can be structured into a database like this:

Over time, the accumulation of data files sparked the concept for the Datanota-Amber prototype. Here is how it works:


Calculate the percentage change in average price based on the given investment dollar amount


Compute the percentage change in the average price resulting from selling the oldest investment

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