Question 1004835
Depends on how you mean to apply them.
p price
p-0.2p first discounted price
(p-0.2p)-(p-0.2p)*(0.1) second discounted price
-
{{{p-0.2p-0.1p+0.1*0.2p}}}
{{{p(1-0.2-0.1+0.1*0.2)}}}
{{{p(1-0.3+0.02)}}}
{{{(0.7+0.02)p}}}
{{{(0.72)P}}}-----Second Price


How this differs from 1.00 of the price originally,
0.28 of the price p.
This is 28% discount altogether.