Analyse the events during every stage of the cell cycle and notice how the following two parameters change:
$(i)$ Number of chromosomes $(N)$ per cell
$(ii)$ Amount of $DNA$ content $(C)$ per cell

(N/A) During the cell cycle,the number of chromosomes $(N)$ and the amount of $DNA$ $(C)$ change depending on the type of division (mitosis or meiosis).
$(i)$ Number of chromosomes $(N)$ per cell:
In mitosis,the number of chromosomes remains constant throughout the cycle because sister chromatids separate but do not change the ploidy. In meiosis $I$,the homologous chromosomes separate,reducing the chromosome number to half $(N/2)$ in the daughter cells.
$(ii)$ Amount of $DNA$ content $(C)$ per cell:
During the $S$ phase of interphase,the $DNA$ content doubles $(2C$ to $4C)$. In mitosis,this $4C$ amount is divided equally between two daughter cells during anaphase,returning to $2C$. In meiosis $II$,the sister chromatids separate,reducing the $DNA$ content to half $(C)$ in each of the four haploid daughter cells.