Q:

Can any one tell me which gradient used in right side overlay

I want to make a flyer, i don't understand which gradient is used in this image.

A:

It's from about to 75% bright grey to RGB=115,75,76 (take it with the color picker), the transition zone is quite narrow, the blending mode=multiply and a little black is sprayed into the top of the layer mask to make the right top corner lighter.

ADD: There's a snippet of the original coat color remaining. It's nearly white. That suggests blending mode multiply to be the easiest to apply, because color X * White = color X in blending math. There's seemingly another answer appeared by member @Westside. Read it, it's more general than this.

