Types/Categories of EFT
- Direct Deposit: Payment directly into a recipient’s bank account, often used for payroll, tax refunds, and government benefits.
- ATM Transactions: Withdrawals and deposits made via Automated Teller Machines.
- Wire Transfers: Immediate transfer of funds from one bank to another, commonly used for large amounts or international transfers.
- Electronic Bill Payment: Allowing consumers to pay bills electronically through online banking or payment portals.
- Online Transactions: Payments made for goods and services via the internet.
- Debit Card Transactions: Payments made directly from a bank account using a debit card.
- Mobile Payments: Transfers done via mobile applications.
In understanding EFT, models like the following are relevant:
Example: Interest Calculation on EFT
To understand the growth of money transferred via EFT with interest, consider the formula for compound interest:
$$ A = P \left(1 + \frac{r}{n}\right)^{nt} $$
Where:
- \( A \) = the amount of money accumulated after n years, including interest.
- \( P \) = principal amount (initial sum of money).
- \( r \) = annual interest rate (decimal).
- \( n \) = number of times interest applied per time period.
- \( t \) = the time the money is invested or borrowed for, in years.
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