How to calculate percentage improvement in response time for performance testing

Question

How should I calculate the percentage improvement in response time.

I am getting 15306 ms response time for old code and 799 ms response for th

Answer 1

The formula for finding the percentage of reduction is:

P = a/b × 100

Where P is the percentage of reduction, a is the amount of the reduction and b is the original amount that was reduced.

So to calculate a you do: old - new wichi will translate into:

P = ((OLD - NEW)/OLD)*100