diff --git a/Meaning-and-the-essence-of-stats.md b/Meaning-and-the-essence-of-stats.md
index 9ed405e..1b42160 100644
--- a/Meaning-and-the-essence-of-stats.md
+++ b/Meaning-and-the-essence-of-stats.md
@@ -63,9 +63,10 @@ That metric shows, how fast you clearing lines
 
 `DS/S = (VS / 100) - (APM / 60)`
 
-
 `DS/S = [ ( attack + garbage lines cleared ) / pieces ] * PPS - APS`, where APS is attack per second
 
+I found a dependence from VS/APM `1.667 VS/APM = 0 DS/S` 
+
 #### [DS/P] Downstack per Piece
 #### [APP + DS/P] Summary of Attack per Piece and Downstack per Piece
 #### [Cheese] Cheese Index