On Sunday, my mother and I went shopping in the shopping center. The poster in the supermarket reads: When shopping in 200 yuan, you can get a voucher of 100 yuan. I thought to myself: If you shop in 200 yuan, you will get a voucher of 100 yuan, which is half of the original price. It's a good deal. "

I chose a set of 208 yuan sportswear for myself and got 100 yuan tokens. Tokens will be used up today, and my mother bought a juicer of 288 yuan for my sick grandfather. I calculated that I could buy a juicer for 188 yuan.

After shopping, on the way home, I said to my mother, "Mom, did we buy all these things at half price today?" Mom smiled and said, "silly boy, it's not like this." When you go home, mom will show you, and you will know. "

When I got home, my mother said to me, "Son, how much did we spend today?" I said, "The sportswear is 208 yuan, and the juicer 188 yuan is 396 yuan." My mother then asked, "What are the original prices of these goods?" I said, "496 yuan." My mother said, "Well, that means we bought 496 yuan worth of goods with 396 yuan today. If we want to calculate the discount, let's first look at the proportion of the actual money spent in the price of goods. With 396,496, you can use a calculator. " As soon as I pressed the calculator, it turned out to be 79% off. I was puzzled, and then my mother asked me. So when we buy a juicer, we can't enjoy the discount of 188 yuan. Therefore, the degree of discount we enjoy is also more favorable than what the merchants say.

"Buyers are not as good as sellers" is true. Merchants have already laid their wishful thinking in their hearts, and there are mathematical problems hidden behind the discount. I must pay attention to it in the future.