Nedbank Home Loan Affordability Calculator

let affordabilitySteps = “”; const currencySymbol = “R”, fixedCurrency = “ZAR”; function calculateLoanAffordability(){ affordabilitySteps=””; const income = parseFloat(document.getElementById(“monthlyIncome”).value); const expenses = parseFloat(document.getElementById(“monthlyExpenses”).value); const rate = parseFloat(document.getElementById(“interestRate”).value)/100; const term = parseFloat(document.getElementById(“loanTerm”).value); if(isNaN(income)||isNaN(expenses)||isNaN(rate)||isNaN(term)||income<=0){ alert("Please enter valid positive values for all fields."); return; } const loanAmount = (income – expenses) * (Math.pow(1 + rate, term) – 1) / (rate * Math.pow(1 + rate, term)); document.getElementById("affordabilityResult").value = formatCurrency(loanAmount); affordabilitySteps += `Inputs:
Monthly Income: ${formatCurrency(income)}
Monthly Expenses: ${formatCurrency(expenses)}
Interest Rate: ${(rate * 100).toFixed(1)}%
Loan Term: ${term} years

`; affordabilitySteps += `Formula:
Loan Amount = (Income – Expenses) × (1 + Rate) ^ Term / (Rate × (1 + Rate) ^ Term)

`; affordabilitySteps += `Results:
Estimated Loan Amount: ${formatCurrency(loanAmount)}
`; if(document.getElementById(“calculationStepsAffordability”).style.display === “block”){ document.getElementById(“calculationStepsAffordability”).innerHTML = affordabilitySteps; } } function resetLoanAffordability(){ document.querySelectorAll(“#calculator input”).forEach(el => el.value = “”); affordabilitySteps = “”; document.getElementById(“calculationStepsAffordability”).innerHTML = “

Not calculated yet.

“; } function toggleAffordabilitySteps(){ const s = document.getElementById(“calculationStepsAffordability”); const a = document.getElementById(“toggleArrowAffordability”); if(s.style.display === “none” || s.style.display === “”){ s.style.display = “block”; a.style.transform = “rotate(180deg)”; s.innerHTML = affordabilitySteps || “

Not calculated yet.

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