A retailer bought 30 kg of rice at a discount of 20% on the marked price. Besides, he was given 8 kg of rice free of cost, by the wholesaler for purchasing a bulk quantity. If the retailer sold the entire quantity of rice at the marked price to his customers, what was his profit percent ?

A

$$45\frac{1}{3}\%$$

B

$$52\frac{2}{3}\%$$

C

$$58\frac{1}{3}\%$$

D

$$42\frac{2}{3}\%$$

E

$$55\frac{1}{3}\%$$