let steps = “”; const currencySymbol = “$”, fixedCurrency = “AUD”; function calculateBorrowingPower(){ steps=””; const income = parseFloat(document.getElementById(“income”).value); const expenses = parseFloat(document.getElementById(“monthlyExpenses”).value); const debt = parseFloat(document.getElementById(“existingDebt”).value); const rate = parseFloat(document.getElementById(“interestRate”).value) / 100; const term = parseInt(document.getElementById(“loanTerm”).value); if(isNaN(income) || isNaN(expenses) || isNaN(debt) || isNaN(rate) || isNaN(term) || income <= 0){ alert("Please enter valid positive values for all fields."); return; } const borrowingPower = (income – expenses – debt / 12) * (1 + rate) * 100000; // Simplified formula for demonstration document.getElementById("borrowAmount").value = formatCurrency(borrowingPower); steps += `Inputs:
Monthly Income: ${formatCurrency(income)}
Monthly Expenses: ${formatCurrency(expenses)}
Existing Debt: ${formatCurrency(debt)}
Interest Rate: ${(rate * 100).toFixed(1)}%
Loan Term: ${term} years

`; steps += `Formula:
Borrowing Power = (Income – Expenses – Debt) * (1 + Rate) * 100,000

`; steps += `Result:
Estimated Borrowing Power: ${formatCurrency(borrowingPower)}
`; if(document.getElementById(“calculationSteps”).style.display===”block”){ document.getElementById(“calculationSteps”).innerHTML = steps; } } function resetForm(){ document.querySelectorAll(“#calculator input”).forEach(el => el.value = “”); steps = “”; document.getElementById(“calculationSteps”).innerHTML = “

Not calculated yet.

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

Not calculated yet.

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