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Sagot :

Answer:   97.75%

Explanation:

  • original price = $780
  • price after discount = 0.85*780 = 663
  • price after markup = 1.15*663 = 762.45

Notice how we don't arrive at 780 again even though we went down 15% and then back up 15%. The two increments aren't the same because we moved down further compared to moving up.

Divide the final value over the original

(762.45)/780 = 0.9775 = 97.75%