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18 - Building a bank deposit simulator from scratch (Math.round) (JS lessons)

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📘 Task: Bank Deposit Calculator

Create an application "Deposit Calculator".

The user enters the deposit amount, selects the number of months, and optionally enables a bonus. After clicking the Calculate button, you need to:

• Calculate the final deposit amount
• Display the initial amount (Start)
• Display the final amount (Result)
• Adjust the height of the bars based on the result

📐 Use the formula:

• Final amount:
  result = money × (1 + 0.01 × months)

📌 If the +200 bonus checkbox is enabled:

• Add +200 to the result

🧪 Examples:

• 10000 for 3 months → 10300
• 10000 for 6 months → 10600
• 10000 for 6 months + bonus → 10800

📊 Visualization:

• Start bar — fixed height (100px)
• Result bar — increases depending on the number of months

📌 Important:
All calculations must be done in JavaScript.
Do not modify HTML or CSS.