let businessSteps = “”; const currencySymbol = “$”, fixedCurrency = “USD”; function calculateBusiness() { businessSteps = “”; const revenue = parseFloat(document.getElementById(“businessRevenue”).value); const expenses = parseFloat(document.getElementById(“businessExpenses”).value); const margin = parseFloat(document.getElementById(“profitMargin”).value) / 100; if (isNaN(revenue) || isNaN(expenses) || isNaN(margin) || revenue <= 0 || expenses <= 0) { alert("Please enter valid positive values for all fields."); return; } const netProfit = (revenue – expenses) * margin; document.getElementById("netProfit").value = formatCurrency(netProfit); businessSteps += `Inputs:
Revenue: ${formatCurrency(revenue)}
Expenses: ${formatCurrency(expenses)}
Profit Margin: ${(margin * 100).toFixed(1)}%

`; businessSteps += `Formulas:
Net Profit = (Revenue – Expenses) × Profit Margin

`; businessSteps += `Results:
Estimated Net Profit: ${formatCurrency(netProfit)}
`; businessSteps += `Tip: Focus on increasing your revenue and improving your profit margin to boost your net profit.`; if (document.getElementById(“calculationStepsBusiness”).style.display === “block”) { document.getElementById(“calculationStepsBusiness”).innerHTML = businessSteps; } } function resetBusiness() { document.querySelectorAll(“#calculator input”).forEach(el => el.value = “”); businessSteps = “”; document.getElementById(“calculationStepsBusiness”).innerHTML = “

Not calculated yet.

“; } function toggleBusinessSteps() { const s = document.getElementById(“calculationStepsBusiness”); const a = document.getElementById(“toggleArrowBusiness”); if (s.style.display === “none” || s.style.display === “”) { s.style.display = “block”; a.style.transform = “rotate(180deg)”; s.innerHTML = businessSteps || “

Not calculated yet.

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