Changing The Position of Mask Curl Noise in Niagara

Hi,
I’ve been trying to mask my Niagara System with the default Mask Contribution function; however, it is masking from bottom up, but I couldn’t figure out how to mask from top to bottom.
I think it is related to the Cone Mask Axis, so I multiply the position attribute with -1, trying to flip it up. It just makes the noise stronger but not making it start from the top. This is my settings. Any suggestions will be extremely helpful! Thank you!