let loanSteps = “”; const currencySymbol = “₹”, fixedCurrency = “INR”; function calculateLoan(){ loanSteps=””; const amount=parseFloat(document.getElementById(“loanAmount”).value); const rate=parseFloat(document.getElementById(“interestRate”).value)/100/12; const tenure=parseFloat(document.getElementById(“loanTenure”).value)*12; if(isNaN(amount)||isNaN(rate)||isNaN(tenure)||amount<=0||rate<=0||tenure<=0){ alert("Please enter valid positive values for all fields."); return; } const emi = (amount * rate * Math.pow(1 + rate, tenure)) / (Math.pow(1 + rate, tenure) – 1); const totalPayment = emi * tenure; const totalInterest = totalPayment – amount; document.getElementById("emiResult").value = formatCurrency(emi); document.getElementById("totalInterest").value = formatCurrency(totalInterest); document.getElementById("totalPayment").value = formatCurrency(totalPayment); loanSteps += `Inputs:
Loan Amount: ${formatCurrency(amount)}
Interest Rate: ${(rate*100).toFixed(2)}% per month
Tenure: ${tenure/12} Years

`; loanSteps += `Formulas:
EMI = (Loan Amount × Rate × (1 + Rate)^Tenure) / ((1 + Rate)^Tenure – 1)
Total Interest = Total Payment – Loan Amount

`; loanSteps += `Results:
Monthly EMI: ${formatCurrency(emi)}
Total Interest: ${formatCurrency(totalInterest)}
Total Payment: ${formatCurrency(totalPayment)}
`; 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;}