Introducing the ‘Profit Calculator’, an essential tool for success in stock and coin investment! This app is more than just a return calculator. The 'Profit Calculator' is a powerful investment tool that helps investors design a trading strategy by identifying when to buy and sell, calculating the rate of return.

# main function
1. Calculate stock returns: Select various stock items and calculate returns based on buy and sell positions. This feature allows you to predict potential return on investment and formulate a strategy.

2. Coin return calculation: Provides return calculation considering the volatility of the coin market. When the user selects a coin item and enters the investment time and amount, the expected rate of return is calculated.

3. Economic Announcement Calendar: Tracks important economic events and announcement calendars to provide you with the market information you need to make investment decisions.

4. Comprehensive economic indicators: Provides various economic indicators that can identify macro trends in the world economy. This allows investors to make more informed decisions.

5. AI investment chatbot: This is an AI-based chatbot function that responds to user questions in real time and provides investment-related advice and information.

6. Investment news: Provides the latest investment news and trends, allowing users to invest in line with market trends.

7. Investment YouTube: Provides education and information through YouTube content on various investment-related topics. A great resource for everyone, from beginners to experts.