SOLUTION: I would appreciate some help on this question please! During a sale, the price of a shirt was decreased by 30%. By what percent must the sales price be increased to restore it

Question 719977: I would appreciate some help on this question please!
During a sale, the price of a shirt was decreased by 30%. By what percent must the sales price be increased to restore it to its original price?
Thank you!
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the original price
With discount:
price =

----------------
Let = the fraction that the discounted price must be
increased by to equal the original price
----------------

Divide both sides by

The discounted price is increased by .4286
or 42.86% to equal the original price
----------------
check Suppose the original price was $70

and

close enough

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