diff --git a/README.md b/README.md
index b1034661..e05f2ff5 100644
--- a/README.md
+++ b/README.md
@@ -1,16 +1,16 @@
-# Introduction to Git and GitHub
+# Simple Interest Calculator
 
-## Simple Interest Calculator
+This is a simple bash script to calculate **Simple Interest** given the principal amount, annual rate of interest, and time period in years. It is intended as a beginner-friendly open-source project to demonstrate basic shell scripting and Git/GitHub workflows.
 
-A calculator that calculates simple interest given principal, annual rate of interest and time period in years.
 
-```
+## Input and Output
+
+```bash
 Input:
-   p, principal amount
-   t, time period in years
-   r, annual rate of interest
-Output
-   simple interest = p*t*r
-```
+p - Principal amount
+t - Time period in years
+r - Annual rate of interest (%)
 
-_© 2022 XYZ, Inc._
+Output:
+simple interest = (p * t * r) / 100
+```