If by perentaces you mean parentheses (or brackets) and not percentages then it means your emergency brake is on. To fix it just pull the emergency brake release handle and the pedal should come back again.
upside horseshoe on the car
The exclamation point warning light on a BMW 650I indicates low tire pressure.
Brake system warning light.....
That is the symbol for traction control.
The exclamation mark on any sign is an alarm or warning. With a fire symbol, the sign is warning of combustibles nearby.
it means your handbrake is on
An exclamation mark inside a triangle is a warning sign. This can be a warning sign on many devices including a car, a computer, or a cell phone.
The red exclamation point in a circle is the parking brake indicator.
handbrake light
low tire warning
Usually, " warning!!!"
Parking bake is on.