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src/lib/formatters.ts

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+const numberFormatter = new Intl.NumberFormat(undefined, {
+    maximumFractionDigits: 2,
+    minimumFractionDigits: 0,
+});
+
+const dateFormatter = new Intl.DateTimeFormat(undefined, {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+    hour: '2-digit',
+    minute: '2-digit',
+    hour12: false,
+});
+
+export function formatNumber(num: number): string {
+    return numberFormatter.format(num);
+}
+export function formatDate(timestamp: number): string {
+    return dateFormatter.format(new Date(timestamp));
+}