Calculator App 🧮

A simple WPF calculator built with C#. Supports basic arithmetic operations, percentage calculations, and negative numbers.

Features

• ✅ Addition, subtraction, multiplication, division
• ✅ Percentage calculations
• ✅ Negative number toggle
• ✅ Clear (AC) button

Usage

1. Click number buttons to enter values.
2. Use operation buttons (+, -, ×, ÷) to perform calculations.
3. Press = to get the result.
4. AC clears the display.
5. % calculates percentages.