diff --git a/src/utils/tool.js b/src/utils/tool.js
index 8cb377c..dd4dfd1 100644
--- a/src/utils/tool.js
+++ b/src/utils/tool.js
@@ -37,8 +37,8 @@ function calcRectangleFromPoints(points) {
 
     const bottomAngleRad = Math.atan2(p1.y - p4.y, p1.x - p4.x);
     const leftAngleRad = Math.atan2(p1.x - p2.x, p1.y - p2.y);
-    const angleDeg = bottomAngleRad * 180 / Math.PI;
-    console.log(leftAngleRad * 180 / Math.PI)
+    const angleDeg = leftAngleRad * 180 / Math.PI - bottomAngleRad * 180 / Math.PI;
+    console.log(angleDeg)
     return {
         width: Number(width.toFixed(2)), height: Number(height.toFixed(2)), angle: Number(angleDeg.toFixed(6))
     };