How can you predict the following stages of a reaction by comparing the value of Kc and Qc?

Prediction of the following stages of a reaction by comparing the value of Kc and Qc are
(i) If Qc<Kc, the reaction will proceed in the direction of the products (forward reaction).
(ii) If Qc>Kc, the reaction will proceed in the direction of reactants (reverse reaction).
(iii) If Qc=Kc, the reaction mixture is already at equilibrium.