Reduce vertical and horizontal resolution of cropped image. Also issue is my cropped image size is always greater than original image. Why this happening?

[Diwas777]

I want to reduce vertical and horizontal resolution of cropped image.
I have set up as below:
:width="200"
:height="200"
:quality="1"

And while uploading I got image of size (width= 200px and height=200px) which is Ok. But I also want to reduce image horizontal resolution and vertical resolution .How can I do this with Croppa?

My Case Horizontal resolution and Vertical Resolution is always 96dpi.
capture

Also my cropped image size is always greater than original image?

[Diwas777]

I think I have to set resolution using back end ....