A, B and C invest their capitals in the ratio \(\frac{2}{5}\) ∶ \(\frac{3}{4}\) ∶ \(\frac{5}{8}\). After 3 months, A increased his capital by 25% and B decreased his capital by 20% and C does not make any change in his investment. What is the share (in Rs.) of C in the total profit of Rs. 2,16,840 after one year?