How to Use Ba 2 Plus Financial Calculator

let calculationSteps = “”; const currencySymbol = “$”, fixedCurrency = “USD”; function calculatePayment(){ calculationSteps=””; const loanAmount = parseFloat(document.getElementById(“loanAmount”).value); const interestRate = parseFloat(document.getElementById(“interestRate”).value) / 100 / 12; const years = parseFloat(document.getElementById(“years”).value) * 12; if (isNaN(loanAmount) || isNaN(interestRate) || isNaN(years) || loanAmount <= 0 || interestRate <= 0 || years <= 0) { alert("Please enter valid positive values for all fields."); return; } const monthlyPayment = loanAmount * interestRate / (1 – Math.pow(1 + interestRate, -years)); document.getElementById("paymentResult").value = formatCurrency(monthlyPayment); calculationSteps += `Inputs:
Loan Amount: ${formatCurrency(loanAmount)}
Interest Rate: ${(interestRate * 12 * 100).toFixed(2)}%
Years: ${years / 12}

`; calculationSteps += `Formulas:
Monthly Payment = Loan Amount × Interest Rate / (1 – (1 + Interest Rate)^(-Years))

`; calculationSteps += `Results:
Monthly Payment: ${formatCurrency(monthlyPayment)}
`; calculationSteps += `Tip: Use the BA II Plus Financial Calculator’s TVM (Time Value of Money) keys to calculate loan payments easily. Enter the principal, interest rate, and loan term to get the monthly payment.`; if (document.getElementById(“calculationSteps”).style.display === “block”) { document.getElementById(“calculationSteps”).innerHTML = calculationSteps; } } function resetCalculator(){ document.querySelectorAll(“#ba2plus-financial-calculator-form input”).forEach(el => el.value = “”); calculationSteps = “”; document.getElementById(“calculationSteps”).innerHTML = “

Not calculated yet.

“; } function toggleCalculationSteps(){ const steps = document.getElementById(“calculationSteps”); const arrow = document.getElementById(“toggleArrow”); if (steps.style.display === “none” || steps.style.display === “”) { steps.style.display = “block”; arrow.style.transform = “rotate(180deg)”; steps.innerHTML = calculationSteps || “

Not calculated yet.

“; } else { steps.style.display = “none”; arrow.style.transform = “rotate(0deg)”; } } function formatCurrency(n) { return currencySymbol + n.toFixed(2) + ” ” + fixedCurrency; }