diff --git a/sis8300bcmApp/Db/sis8300bcm-acct.template b/sis8300bcmApp/Db/sis8300bcm-acct.template
index 092bbe7638c05bb32a27de828d7b0f087f7cdf8d..763832f77f3d5e3cea43ca4d9692b06ea776e636 100644
--- a/sis8300bcmApp/Db/sis8300bcm-acct.template
+++ b/sis8300bcmApp/Db/sis8300bcm-acct.template
@@ -228,7 +228,7 @@ record(calcout, "$(P)$(R)DroopRateCalc")
     field(INPB, "$(P)$(R)CalibrationSample2R")
     field(INPC, "$(P)$(R)CalibrationSample3R")
     field(INPD, "$(P_BCM=$(P))$(R)CalibrationPulseCounter CPP")
-    field(CALC, "(32768*100*(B-C)/(2.1*2.4*B)) / (65536*8.4)")
+    field(CALC, "100*(B-C) / (2.86*B)")
     field(OUT,  "$(P)$(R)DroopRate PP")
 }