negative percentage color condition in cross table

enter image description hereI used cross table . in cross table i try to apply color condition on percentage column with the help of Color scheme grouping option in cross table color property.

cross table -->color -->Color Scheme grouping -->Percentage.

here i appy fixed color mode and Addrule(percentage>25% with "GREEN" color), i took another Addrule(Percentage<25% with "RED" color)

now i am geeting wrong color code as like attachment.

for negative percentage -73% it should in "RED" color as per my condition.

how to over come this issue .

i would like to show percentage>25% in "GREEN" and percentage<25%(with negative values) in "RED" color.