How to calculate the 20% working fee of platinum diamond ring in Huiyuan Jewelry Store?

1, according to the calculation method of labor cost = selling price × labor cost ratio.

2. Assuming that the price of platinum diamond ring is 10000 yuan, if the labor cost is 20%, it needs to be increased by 2000 yuan.

3. Labor cost = 10000×20%=2000.

4. So the final price is: total price = selling price+labor cost, total price =10000+2000 =12000.