diff --git a/src/cards/top-languages-card.js b/src/cards/top-languages-card.js
index f2fda70ece155..7ff100710bc93 100644
--- a/src/cards/top-languages-card.js
+++ b/src/cards/top-languages-card.js
@@ -201,7 +201,7 @@ const trimTopLanguages = (topLangs, langs_count, hide) => {
  * @param {number} props.width The card width
  * @param {string} props.color Color of the programming language.
  * @param {string} props.name Name of the programming language.
- * @param {string} props.progress Usage of the programming language in percentage.
+ * @param {number} props.progress Usage of the programming language in percentage.
  * @param {number} props.index Index of the programming language.
  * @returns {string} Programming language SVG node.
  */
@@ -329,7 +329,9 @@ const renderNormalLayout = (langs, width, totalLanguageSize) => {
         width,
         name: lang.name,
         color: lang.color || DEFAULT_LANG_COLOR,
-        progress: ((lang.size / totalLanguageSize) * 100).toFixed(2),
+        progress: parseFloat(
+          ((lang.size / totalLanguageSize) * 100).toFixed(2),
+        ),
         index,
       });
     }),
diff --git a/src/cards/wakatime-card.js b/src/cards/wakatime-card.js
index e3f5433c4cb72..187af7ed87c34 100644
--- a/src/cards/wakatime-card.js
+++ b/src/cards/wakatime-card.js
@@ -95,7 +95,7 @@ const createLanguageTextNode = ({ langs, y }) => {
  * @param {string} args.label The label of the text node item.
  * @param {string} args.value The value of the text node item.
  * @param {number} args.index The index of the text node item.
- * @param {string} args.percent Percentage of the text node item.
+ * @param {number} args.percent Percentage of the text node item.
  * @param {boolean=} args.hideProgress Whether to hide the progress bar.
  * @param {string} args.progressBarColor The color of the progress bar.
  * @param {string} args.progressBarBackgroundColor The color of the progress bar background.
diff --git a/src/common/createProgressNode.js b/src/common/createProgressNode.js
index 2825583c7406a..2d7303a5a78ef 100644
--- a/src/common/createProgressNode.js
+++ b/src/common/createProgressNode.js
@@ -1,3 +1,5 @@
+// @ts-check
+
 import { clampValue } from "./utils.js";
 
 /**
@@ -8,7 +10,7 @@ import { clampValue } from "./utils.js";
  * @param {number} createProgressNodeParams.y Y-axis position.
  * @param {number} createProgressNodeParams.width Width of progress bar.
  * @param {string} createProgressNodeParams.color Progress color.
- * @param {string} createProgressNodeParams.progress Progress value.
+ * @param {number} createProgressNodeParams.progress Progress value.
  * @param {string} createProgressNodeParams.progressBarBackgroundColor Progress bar bg color.
  * @param {number} createProgressNodeParams.delay Delay before animation starts.
  * @returns {string} Progress node.