Percentage Question how do I do it long hand

Mathematics
Tutor: None Selected Time limit: 1 Day

There is an item discounted 10%.  Then on top of that discount it is discounted an additonal 15%.  The customer ends up paying $306.  What was the original price? How do you figure this out long hand?

Mar 30th, 2015

buying price $306= (100-15)%

                          ?= 100%

    (100 x 306)/85 =

Second Discounted Price = $360

now, $ 360 =90%

              ?   = 100%

   36000/90 = $400

therefore the Original price of the item was $400

        Don't forget to Best Soonest :)

                         Godbless!

Mar 30th, 2015

Thank you so much for your speedy reply!  Makes sense!

Mar 30th, 2015

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