How To Calculate Rate of Change (ROC) in TypeScript?

@kadin 

To calculate the Rate of Change (ROC) in TypeScript, you can follow these steps:

1. Determine the initial value and the final value for the variable you are analyzing. For example, let's say the initial value is 50 and the final value is 70.
2. Calculate the difference between the final value and the initial value. In this case, the difference would be 70 - 50 = 20.
3. Divide the difference by the initial value. In our example, the ROC would be calculated as (70 - 50) / 50 = 0.4.
4. Multiply the result by 100 to get the percentage rate of change. In our example, the ROC in percentage would be 0.4 * 100 = 40%.

So, the rate of change for the variable from 50 to 70 is 40%.