Do you mean
Final Price = Base Price * Percent
using 4 different attributes for a product.
product price = $100
first attribute product price 30% result= 130$
second attribute value 10%
That's exactly the problem here, calculating 10% of the price of the secondary product and the result is $100 x 10%=$10
130+10 = $140
if we need
by referencing the first result
$130 x 10% = $13
130+13 = $143
and it should calculate with this logic
Thank you for your interest.
I hope I could explain.