I have a sum in my sql statement select sum(service.price) as total and sum(service.price) *.10 as savings To give a 10% discount

when i write response.write rs("total") or rs("savings") the right info displays
But i need to subtract savings from total. how would this be written

i.e. response.write rs("savings - total")

nevermind i was able to do the match in the sql statment