+CUR_TIME=`/usr/bin/php4 -c /etc/php4/apache/php.ini -f $SHELLADDERPHP -- $COMMONPHP "select SEC_TO_TIME(SUM(TIME_TO_SEC(time))) from bench where mark = \"$MARK\" group by mark;"`
+OLD_TIME=`/usr/bin/php4 -c /etc/php4/apache/php.ini -f $SHELLADDERPHP -- $COMMONPHP "select SEC_TO_TIME(SUM(TIME_TO_SEC(time))) from bench where mark = \"$LASTMARK\" group by mark;"`
+
+CUR_CENTS=`/usr/bin/php4 -c /etc/php4/apache/php.ini -f $SHELLTIME2CENTSPHP -- $COMMONPHP $CUR_TIME`
+OLD_CENTS=`/usr/bin/php4 -c /etc/php4/apache/php.ini -f $SHELLTIME2CENTSPHP -- $COMMONPHP $OLD_TIME`
+
+((DELTA=$CUR_CENTS-$OLD_CENTS))
+if [ $DELTA -lt 0 ]; then
+ PERC=0
+else
+ ((PERC=100 * $DELTA))
+ ((PERC=$PERC / $OLD_CENTS))
+fi