diff --git a/scripts/beers.py b/scripts/beers.py
index 099013c..87e935e 100644
--- a/scripts/beers.py
+++ b/scripts/beers.py
@@ -1,10 +1,10 @@
-led1Buffer_555 =  24185.67
-led1Sample_555 = 19436.67
-led2Buffer_427 = 26570.67
-led2Sample_427 = 9177
+led1Buffer_555 =  24959
+led1Sample_555 = 19919.67
+led2Buffer_427 = 26601.67
+led2Sample_427 = 9260
 
 import math
 
-absorbance = math.log(led1Buffer_555/led1Sample_555) / math.log(led2Buffer_427 / led2Sample_427)
+absorbance = - math.log(led1Buffer_555/led1Sample_555) / - math.log(led2Buffer_427 / led2Sample_427)
 
 print(absorbance)