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

`; loanSteps += `Formulas:
Monthly Payment = Loan Amount × Rate / (1 – (1 + Rate)^(-Term))

`; loanSteps += `Results:
Monthly Payment: ${formatCurrency(monthlyPayment)}
`; if(document.getElementById(“calculationStepsLoan”).style.display===”block”){ document.getElementById(“calculationStepsLoan”).innerHTML = loanSteps; } } function resetLoanRate(){ 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;}