Answer:
The markdown rate is 32.1%
Step-by-step explanation:
We can easily solve this problem by applying a rule of three,
$1.09 a dozen ---------------------------------- 100% of the value
$0.35 a dozen ------------------------------------- x
x = ($0.35/$1.09) * 100%
x = 0.3211 *100%
x = 32.11%
The markdown rate is 32.1%