The phrase "degree turn" refers to making a complete change in direction or perspective. It can be used to describe a turnaround, shift, or complete reversal in a situation or someone's viewpoint. Full definition
Let's take a ninety degree turn from active sitting to meditation. (gaiam.com)
The rules of job search have changed; in fact, some might say they have taken a 180 - degree turn in recent years, particularly with the advent of social networking. (careertrend.net)
That's a 180 degree turn around in the past two years. (jamigold.com)