By default, angles in Construct2 facing right and increments clockwise.
Angles in Construct2
To change this behavior, to anti-clockwise do the following:
Anti-clockwise angle = - ( Clockwise angle)
To display clockwise angle as anti-clockwise angle use the following calculation,
Anti-clockwise angle = 360 degrees - clockwise angle
Ex: Clockwise angle 45 degrees = Anticlockwise angle 315 degrees and equals to -45