Consider two coupons: one offers 50 percent off a scarf that costs $20, and the other offers 5 percent off a jacket that costs $200. Using either coupon requires driving to the shopping mall across town. According to the Weber-Fechner law, which coupon will people tend to perceive as being more valuable?
people would see the scarf being a more valuable offer because the percent number is higher than the jackets percent number even though the percentages both subtract the same amount of money from the product