any mistakes in my sentence?
Tianjin Sold 190 kilograms of Gold Jewelry in the Golden Week
The 7th was the last day of the eight-day holiday, which is the combination of Mid-Autumn Festival and National Day. According to the rough calculation of Tianjin Commerce Association for General Merchandise to 27 department stores, it totaled 697 million yuan for the overall revenue of the eight-day "Golden Week". It recorded a 15% volume growth in gold jewelry compared with the previous week. Seventeen department stores sold 190 kilograms of yellow gold for the gold jewelry and set a new record for Tianjin "Golden Week" gold selling.

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Tianjin Sold 190 kilograms of Gold Jewelry in the Golden Week

The 7th (of which month?) was the last day of the eight-day holiday, which is the combination of Mid-Autumn Festival and National Day. According to A rough calculation BY Tianjin Commerce Association for General Merchandise, the overall revenue of 27 department stores totaled 697 million yuan for the eight-day "Golden Week". It recorded a 15% volume growth in gold jewelry compared TO the previous week. Seventeen department stores sold 190 kilograms of yellow gold IN THE FORM OF gold jewelry and set a new record for Tianjin "Golden Week" gold selling.

NOTE : In British nglish, it is :"Jewellery"