diff --git a/static/brush-cost.js b/static/brush-cost.js
index 31e2263..1b6a690 100644
--- a/static/brush-cost.js
+++ b/static/brush-cost.js
@@ -17,7 +17,7 @@ class Gauge extends HTMLElement {
     setValue(value, valueMax) {
         let clampedNormalized = Math.max(0, Math.min(1, value / valueMax));
         this.style.setProperty("--progress", `${clampedNormalized * 100}%`);
-        this.title = `${this.label}: ${value} / ${valueMax} (${Math.ceil((value / valueMax) * 100)}%)`;
+        this.title = `${this.label}: ${value} / ${valueMax} (${Math.ceil(clampedNormalized * 100)}%)`;
     }
 }