diff --git a/submission_thesis/CH6_Software_Examples/software.tex b/submission_thesis/CH6_Software_Examples/software.tex
index de20b77..a5df49e 100644
--- a/submission_thesis/CH6_Software_Examples/software.tex
+++ b/submission_thesis/CH6_Software_Examples/software.tex
@@ -316,7 +316,7 @@ int  read_4_20_input ( int * value ) {
     error_flag = 1; /* Error flag set to TRUE */
   }
   else {
-    *value = (input_volts - 0.88) * ( 4.4 - 0.88 ) * 999.0;
+    *value = ((input_volts - 0.88) / ( 4.4 - 0.88 )) * 999.0;
     error_flag = 0; /* indicate current input in range */
   }