diff --git a/src/scripts/main.js b/src/scripts/main.js
index c6e3f8784..6eebba7a5 100644
--- a/src/scripts/main.js
+++ b/src/scripts/main.js
@@ -1,3 +1,16 @@
 'use strict';
 
-// write your code here
+const populationElements = document.querySelectorAll('span.population');
+
+const populations = Array.from(populationElements).map((span) => {
+  return Number(span.textContent.replace(/,/g, ''));
+});
+
+const total = populations.reduce((sum, n) => sum + n, 0);
+const average = total / populations.length;
+
+document.querySelector('span.average-population').textContent =
+  Math.round(average).toLocaleString();
+
+document.querySelector('span.total-population').textContent =
+  total.toLocaleString();