Consider following statements: 

A. An employee's salary was reduced by 50%. Again, the reduced salary was increased by 50%. Now, his initial and final salaries are same. 

B. 64% is equivalent to 16/25.

C. If an article is sold at 200% profit, then the ratio of cost price to its selling price is 1∶2.

Which of the above statement(s) is/are correct?