diff --git a/js/ui/chart.js b/js/ui/chart.js
index b6300bc..348340d 100644
--- a/js/ui/chart.js
+++ b/js/ui/chart.js
@@ -368,6 +368,28 @@ constructor() {
         
         this.initPriceScaleControls();
         this.initNavigationControls();
+        // Setup price format selector change handler
+        document.addEventListener("DOMContentLoaded", () => {
+            const priceSelect = document.getElementById("priceFormatSelect");
+            if (priceSelect) {
+                priceSelect.addEventListener("change", (e) => {
+                    const precision = parseInt(e.target.value);
+                    this.chart.priceScale().applyOptions({
+                        priceFormat: { type: "price", precision: precision, minMove: precision===0 ? 1 : 0.0001 }
+                    });
+                });
+            }
+        });
+        // Setup price format selector change handler
+        const priceSelect = document.getElementById("priceFormatSelect");
+        if (priceSelect) {
+            priceSelect.addEventListener("change", (e) => {
+                const precision = parseInt(e.target.value);
+                this.chart.priceScale().applyOptions({
+                    priceFormat: { type: "price", precision: precision, minMove: precision===0 ? 1 : 0.0001 }
+                });
+            });
+        }
         
         this.chart.timeScale().subscribeVisibleLogicalRangeChange(this.onVisibleRangeChange.bind(this));