# Mortgage Comparison Tool
 
A professional mortgage comparison tool that helps you compare loan schemes from different banks and clearly displays cost differences through visualized charts.
 
## Key Features
 
- **Multi-scenario Comparison**: Support simultaneous comparison of multiple bank loan schemes
- **Visual Display**: Intuitive display of cost differences between different schemes through charts
- **Flexible Configuration**: Support both equal principal and interest and equal principal repayment methods
- **Smart Calculation**: Automatically calculate monthly payment, total repayment, total interest, and savings
- **Result Export**: Support exporting comparison results as CSV files
 
## How to Use
 
1. Enter loan amount and select repayment method
2. Set bank name, interest rate, and loan term for each scheme
3. System automatically calculates and displays comparison results
4. View cost differences through visualization charts
5. Export comparison results for saving
 
## Application Scenarios
 
- Home loan scheme comparison
- Bank interest rate comparison analysis
- Loan term impact assessment
- Optimal scheme selection decision
 
## Calculation Description
 
### Equal Principal and Interest
Fixed monthly payment amount, with higher interest proportion in early stages and higher principal proportion in later stages.
 
### Equal Principal
Fixed monthly principal, decreasing interest month by month, with relatively less total interest.
 
Through this tool, you can clearly see the cost differences under different repayment methods and interest rate conditions, providing strong support for your home purchase decisions.