How do I "set angle AWAY from position"

I am trying to have a bullet that is moving toward an object, change direction and move away from the object while pressing a key down.

Is there a way to do the opposite of "set angle toward position" and move something away from a specific object?

subtract 180 from the angle?

would this work?

set angle to: angle(bullet.x,bullet.y,object.x,object.y)+180

would this work?

set angle to: angle(bullet.x,bullet.y,object.x,object.y)+180

Wow, that worked perfectly. Thank you so much! Can you explain what is happening there?

In C2 angles are in degrees, basically,an angle + or - 180° is the opposite angle due to the cyclic nature of angles(adding 360°, aka a full rotation, is the same as adding 0, (360+0)/2=180 so you have half a complete turn, thus the opposite direction)

And angle(x1, y1, x2, y2) return the angle between the two points

So simply put C2 calculates the angle between the bullet position and the object position and you add 180 (degrees) to get the opposite angle..

I understand the flipping the angle by adding 180 degrees. I was unaware of the ability to get the angle between two points with "angle(x1, y1, x2, y2)." That is great. Thank you very much!

this page of the manual, in the Math paragraph, is quite useful in some cases (since it shows the predefined math functions you can use in C2 directly): https://www.scirra.com/manual/126/system-expressions

this page of the manual, in the Math paragraph, is quite useful in some cases (since it shows the predefined math functions you can use in C2 directly): https://www.scirra.com/manual/126/system-expressions

That's a fantastic reference, thanks!