Thank you for the opportunity to help you with your question!
There are of course multiple percentages you can use, but if a 40% discount gives us the final clearance price then we should start with a percent that is less than 40, let's say 30%.
20% of $180 = $36 (to find this, do .20 x 180)
Subtract this from the original price: $180 - $36 = $144.
Now, the final price we want is $108, so we need to find the difference of these 2 prices and then find at what percentage this occurs at.
$144 - $108 = $36
x% of $144 = $36
which means we have the equation: p x 144 = 36 (Using the variable p for percent)
divide each side by 144:
p = 36/144 = .33333 or 33.33%
Therefore, we can use 20%, then 33.33% (or say an additional 1/3 of the cost off).
Please let me know if you need any clarification. I'm always happy to answer your questions.
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