let loanSteps = “”; const currencySymbol = “ZAR”, fixedCurrency = “ZAR”; function calculateLoan(){ loanSteps=””; const loanAmount = parseFloat(document.getElementById(“loanAmount”).value); const loanTerm = parseInt(document.getElementById(“loanTerm”).value); const interestRate = parseFloat(document.getElementById(“interestRate”).value) / 100; if(isNaN(loanAmount) || isNaN(loanTerm) || isNaN(interestRate) || loanAmount <= 0 || loanTerm <= 0 || interestRate <= 0){ alert("Please enter valid positive values for all fields."); return; } const monthlyRate = interestRate / 12; const monthlyRepayment = (loanAmount * monthlyRate) / (1 – Math.pow(1 + monthlyRate, -loanTerm)); const totalRepayment = monthlyRepayment * loanTerm; document.getElementById("monthlyRepayment").value = formatCurrency(monthlyRepayment); document.getElementById("totalRepayment").value = formatCurrency(totalRepayment); loanSteps += `Inputs:
Loan Amount: ${formatCurrency(loanAmount)}
Loan Term: ${loanTerm} months
Interest Rate: ${(interestRate * 100).toFixed(2)}%

`; loanSteps += `Formulas:
Monthly Repayment = (Loan Amount × Monthly Interest Rate) / (1 – (1 + Monthly Interest Rate)^{-Loan Term})
Total Repayment = Monthly Repayment × Loan Term

`; loanSteps += `Results:
Monthly Repayment: ${formatCurrency(monthlyRepayment)}
Total Repayment: ${formatCurrency(totalRepayment)}
`; loanSteps += `Tip: Ensure that the loan term and interest rate suit your financial situation for manageable repayments.`; if(document.getElementById(“calculationStepsLoan”).style.display === “block”){ document.getElementById(“calculationStepsLoan”).innerHTML = loanSteps; } } function resetLoan(){ document.querySelectorAll(“#calculator input”).forEach(el => el.value = “”); loanSteps = “”; document.getElementById(“calculationStepsLoan”).innerHTML = “

Not calculated yet.

“; } function toggleLoanSteps(){ const s = document.getElementById(“calculationStepsLoan”); const a = document.getElementById(“toggleArrowLoan”); if(s.style.display === “none” || s.style.display === “”){ s.style.display = “block”; a.style.transform = “rotate(180deg)”; s.innerHTML = loanSteps || “

Not calculated yet.

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