A shopkeeper bought an article for Rs. 520. At what price (in Rs. ) should he sell the article to make 30% profit?

Correct option is C

​Given:
​Cost Price (CP) = Rs. 520
​Required Profit = 30%
​Formula Used:
​​$$\text{Selling Price (SP)} = \text{Cost Price (CP)} \times \left(1 + \frac{\text{Profit\%}}{100} \right)$$​​​
​Solution:
​​$$\text{SP} = 520 \times \left(1 + \frac{30}{100} \right) \\= 520 \times \left( \frac{130}{100} \right) \\= \frac{520 \times 130}{100} \\= 676$$​​​​