let lineOfCreditSteps = “”; const currencySymbol = “$”, fixedCurrency = “USD”; function calculateLineOfCredit(){ lineOfCreditSteps=””; const amount=parseFloat(document.getElementById(“loanAmount”).value); const rate=parseFloat(document.getElementById(“interestRate”).value)/100; const term=parseInt(document.getElementById(“loanTerm”).value); if(isNaN(amount)||isNaN(rate)||isNaN(term)||amount<=0||rate<=0||term<=0){ alert("Please enter valid positive values for all fields."); return; } const monthlyRate = rate / 12; const months = term * 12; const numerator = monthlyRate * Math.pow(1 + monthlyRate, months); const denominator = Math.pow(1 + monthlyRate, months) – 1; const monthlyPayment = amount * (numerator / denominator); const totalPayment = monthlyPayment * months; const totalInterest = totalPayment – amount; document.getElementById("monthlyPayment").value = formatCurrency(monthlyPayment); document.getElementById("totalInterest").value = formatCurrency(totalInterest); lineOfCreditSteps += `Inputs:
Loan Amount: ${formatCurrency(amount)}
Interest Rate: ${(rate * 100).toFixed(1)}%
Loan Term: ${term} years

`; lineOfCreditSteps += `Formulas:
Monthly Payment = Loan Amount × (Monthly Rate × (1 + Monthly Rate) ^ Months) / ((1 + Monthly Rate) ^ Months – 1)
Total Interest = (Monthly Payment × Months) – Loan Amount

`; lineOfCreditSteps += `Results:
Monthly Payment: ${formatCurrency(monthlyPayment)}
Total Interest Paid: ${formatCurrency(totalInterest)}
`; lineOfCreditSteps += `Tip: Consider the loan term carefully, as longer terms may reduce monthly payments but increase the total interest paid over time.`; if(document.getElementById(“calculationStepsLineOfCredit”).style.display===”block”){ document.getElementById(“calculationStepsLineOfCredit”).innerHTML = lineOfCreditSteps; } } function resetLineOfCredit(){ document.querySelectorAll(“#calculator input”).forEach(el=>el.value=””); lineOfCreditSteps=””; document.getElementById(“calculationStepsLineOfCredit”).innerHTML=”

Not calculated yet.

“; } function toggleLineOfCreditSteps(){ const s=document.getElementById(“calculationStepsLineOfCredit”); const a=document.getElementById(“toggleArrowLineOfCredit”); if(s.style.display===”none”||s.style.display===””){ s.style.display=”block”;a.style.transform=”rotate(180deg)”; s.innerHTML=lineOfCreditSteps||”

Not calculated yet.

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