0.002 is not much its not even the 1/fourth of SPS price
why not if we set it to 1/4 of the SPS market Price.. for example current Price of $SPS 0.00912÷4= 0.00228 that will be 0.00228 .. when the SPS price go up the Rental market price go up with it if it come down it will come down with this we dont have to do changes again and again
if we set fixed 0.002 then if SPS reach 0.03 or more then we have to change it again which will need dev time and resources so why not fix it in one go
And also not forget to increase the BURN FEE of DEC from 2% to 10%