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

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

`; loanSteps += `Results:
Estimated Monthly Repayment: ${formatCurrency(monthlyRepayment)}
`; 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;}