From 5818353ebcffc2047768396ed7d41ad6cf18558b Mon Sep 17 00:00:00 2001
From: Shelley Vohr <shelley.vohr@gmail.com>
Date: Fri, 9 Feb 2018 23:20:45 -0500
Subject: [PATCH] add formula to setZoomLevel doc

---
 docs/api/web-contents.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/docs/api/web-contents.md b/docs/api/web-contents.md
index f52566fe7b92..0564dddc2345 100644
--- a/docs/api/web-contents.md
+++ b/docs/api/web-contents.md
@@ -831,7 +831,8 @@ Sends a request to get current zoom factor, the `callback` will be called with
 
 Changes the zoom level to the specified level. The original size is 0 and each
 increment above or below represents zooming 20% larger or smaller to default
-limits of 300% and 50% of original size, respectively.
+limits of 300% and 50% of original size, respectively. The formula for this is
+`scale := 1.2 ^ level`.
 
 #### `contents.getZoomLevel(callback)`