diff --git a/src/main.cpp b/src/main.cpp
index 675ae15..256e5ce 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -288,8 +288,11 @@ void dataMode(){
 				uint8_t calibW=135;
 				
 				//one of calibR,calibG or calibB should be 255.
-				int minval=min(r-calibR,min(g-calibG,b-calibB)); //0 if rgb contains full white. <0 if not full white. -1*(max(calibR,calibG,calibB)) if no white content
-				float whitecontent=1.0 + (minval/255.0);  //scale to: 0=no white, 1=full white content
+				//int minval=min(r-calibR,min(g-calibG,b-calibB)); //0 if rgb contains full white. <0 if not full white. -1*(max(calibR,calibG,calibB)) if no white content
+				//float whitecontent=1.0 + (minval/255.0);  //scale to: 0=no white, 1=full white content
+
+				float whitecontent=min(float(r)/calibR, min(float(g)/calibG, float(b)/calibB));
+
 				//subtract white contents from rgb
 				r-=calibR*whitecontent;
 				g-=calibG*whitecontent;