First-day sales were off the charts.
Advance sales quickly went off the charts.
Their activity is off the charts.
The Doctor immediately made a call to my primary physician to find out what medications I could take, because my blood pressure was off the charts.
Compounded by the world conditions of terrorism and war, bomb shelter sales are off the charts.
While they can be extremely intelligent--many scoring off the charts when tested-adults are often at a loss as to the correct teaching methods for autistic children.