BHV-11591 Reduce calculation and fix logic fault.
Some cases, low could not be '0'

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com
BHV-11591 Make consistency with medelsRemove()

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com