let repaymentSteps = “”; const currencySymbol = “$”, fixedCurrency = “USD”; function calculateRepayment(){ repaymentSteps=””; const amount=parseFloat(document.getElementById(“loanAmount”).value); const rate=parseFloat(document.getElementById(“interestRate”).value)/100; const term=parseFloat(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 monthlyRepayment = amount * (monthlyRate * Math.pow(1 + monthlyRate, months)) / (Math.pow(1 + monthlyRate, months) – 1); document.getElementById("monthlyRepayment").value = formatCurrency(monthlyRepayment); repaymentSteps += `Inputs:
Loan Amount: ${formatCurrency(amount)}
Interest Rate: ${(rate*100).toFixed(2)}%
Loan Term: ${term} years

`; repaymentSteps += `Formulas:
Monthly Repayment = Loan Amount × (Rate × (1 + Rate)^Months) / ((1 + Rate)^Months – 1)

`; repaymentSteps += `Results:
Monthly Repayment: ${formatCurrency(monthlyRepayment)}
`; repaymentSteps += `Tip: The longer the loan term, the lower the monthly repayment, but the total interest paid over the loan term increases.`; if(document.getElementById(“calculationStepsRepayment”).style.display===”block”){ document.getElementById(“calculationStepsRepayment”).innerHTML = repaymentSteps; } } function resetRepayment(){ document.querySelectorAll(“#calculator input”).forEach(el=>el.value=””); repaymentSteps=””; document.getElementById(“calculationStepsRepayment”).innerHTML=”

Not calculated yet.

“; } function toggleRepaymentSteps(){ const s=document.getElementById(“calculationStepsRepayment”); const a=document.getElementById(“toggleArrowRepayment”); if(s.style.display===”none”||s.style.display===””){ s.style.display=”block”;a.style.transform=”rotate(180deg)”; s.innerHTML=repaymentSteps||”

Not calculated yet.

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