Group 1 - The core idea of the article revolves around a unique promotional strategy by a real estate developer in Hangzhou, where buyers received gold as a gift when purchasing properties, which ultimately led to a financial advantage despite a decline in property values [1][3] Group 2 - In June 2023, the developer offered a promotion where buyers of specific apartment sizes received gold: 700 grams for 89 square meters, 850 grams for 100 square meters, and 1000 grams for 119 square meters [1] - The gold was valued at approximately 450 yuan per gram at the time of purchase, making the 1000 grams of gold worth about 45 million yuan, effectively reducing the property price by 8.2% [1] Group 3 - By February 9, 2023, the international gold price surged to about 1120 yuan per gram, marking an increase of nearly 149% [3] - The value of the 1000 grams of gold received by homeowners rose to approximately 112 million yuan, while the property value decreased by about 870,000 yuan [3] - This resulted in a net asset increase of around 250,000 yuan for homeowners, as the appreciation in gold value offset the decline in property value [3]