HOW DO YOU FIND THE DISCOUNT IN PERCENTAGE IF YOU KNOW THE ORIGINAL PRICE AND THE SALES PRICE?

HOW DO YOU FIND THE DISCOUNT IN PERCENTAGE IF YOU KNOW THE ORIGINAL PRICE AND THE SALES PRICE?

A street vendor buys raincoats for $36 and marks them up by 25%. At the end of the season, he sells them at a discount of 30%. At what cost did he sell it finally?

Megan bought 50 beads for $9.95. She received a 10% discount, and she paid a sales tax of 6%. how much did she pay for beads.

Is the tax included on the 18%? if the tax rate is 8%, does that make the discount 10% or is it still 18% plus 8% tax?

buy 2 items and get the cheaper item free. bought 2 items, one $30 and one $48. I want to know what the cost of each item was after applying the discount of the free item

Well i need help with finding the percent discount of the two numbers and its really confusing. I dont know what to do so im getting really confused on my question

Solve it if you think you are smart.

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what was the price before the discount was made. please show work

I am not sure what formula to use... maybe d=r/1+rn

would i use the formula r= d/1-dn? which would be .075/1-.075(60/360) = .0625 or 6.25%