Index: firmware/App/Controllers/AirTrap.c
===================================================================
diff -u -r71a6797d2692a7df96238134acd2d4895f184a23 -r1c2d9db3310c4924ba75ded55dd8960f272ac253
--- firmware/App/Controllers/AirTrap.c	(.../AirTrap.c)	(revision 71a6797d2692a7df96238134acd2d4895f184a23)
+++ firmware/App/Controllers/AirTrap.c	(.../AirTrap.c)	(revision 1c2d9db3310c4924ba75ded55dd8960f272ac253)
@@ -343,7 +343,8 @@
     /// LDT-2384 test formula for air trap lower events for air pump duty cycle based on venous pressure
     /// air pump lowering  PWM (scalar PWM) = 0.0005x^2 + 0.2313x + 63.667, where x is long filtered (60 sec) H14 venous pressure in mmHg before air pump lower event
     F32 dutyCycle = ( ( QUADRATIC_COEFFICIENT  * ( h14Pressure * h14Pressure ) ) - ( LINEAR_COEFFICIENT * ( h14Pressure ) ) ) + CONSTANT_TERM;
-    dutyCycle = ( dutyCycle / FRACTION_TO_PERCENT_FACTOR ) * (F32)AIR_PUMP_MAX_PWM;
+    // covert to percentage
+    dutyCycle = ( dutyCycle /  (F32)AIR_PUMP_MAX_PWM  ) * FRACTION_TO_PERCENT_FACTOR;
 
     return dutyCycle;
 }