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%
