NEW=1
elif [ "$1" == "dec" ]; then
NEW=$(( $CURRENT - $ADJ < 1 ? 1 : $CURRENT - $ADJ ))
+elif echo "$1" | grep -q '^[[:digit:]][[:digit:]]*\%*$'; then
+ NEW=$(( $(echo "$1" | sed 's/\%//') * $MAX / 100 ))
else
NEW=$(( $CURRENT + $ADJ >= $MAX ? $MAX : $CURRENT + $ADJ ))
fi