diff --git a/src/scripts/main.js b/src/scripts/main.js
index c6e3f8784..8af23ddc2 100644
--- a/src/scripts/main.js
+++ b/src/scripts/main.js
@@ -1,3 +1,18 @@
 'use strict';
 
-// write your code here
+const populationElements = document.querySelectorAll('.population');
+
+const populations = Array.from(populationElements)
+  .map((element) => element.textContent.replace(/,/g, '')) // remove commas
+  .map((text) => Number(text))
+  .filter((num) => !isNaN(num));
+
+const totalPopulation = populations.reduce((sum, value) => sum + value, 0);
+
+const averagePopulation = totalPopulation / populations.length;
+
+const formattedTotal = totalPopulation.toLocaleString();
+const formattedAverage = Math.round(averagePopulation).toLocaleString();
+
+document.querySelector('.total-population').textContent = formattedTotal;
+document.querySelector('.average-population').textContent = formattedAverage;