diff --git a/js/lib/dollars.js b/js/lib/dollars.js
new file mode 100644
index 00000000..65fc69ff
--- /dev/null
+++ b/js/lib/dollars.js
@@ -0,0 +1,12 @@
+export const formatDollars = value => `$${value.toFixed(2).replace(/\d(?=(\d{3})+\.)/g, '$&,')}`
+
+export const abbreviateDollars = (value, decimals = 1) => {
+  if (value === null) { return null } // terminate early
+  if (value === 0) { return '0' } // terminate early
+  var b = (value).toPrecision(2).split("e"), // get power
+      k = b.length === 1 ? 0 : Math.floor(Math.min(b[1].slice(1), 14) / 3), // floor at decimals, ceiling at trillions
+      c = k < 1 ? value.toFixed(0 + decimals) : (value / Math.pow(10, k * 3) ).toFixed(decimals), // divide by power
+      d = c < 0 ? c : Math.abs(c), // enforce -0 is 0
+      e = d + ['', 'k', 'M', 'B', 'T'][k]; // append power
+  return e;
+}